OA08764A - Objet fiduciaire ou de sécurité permettant une authentification visuelle ou optique. - Google Patents
Objet fiduciaire ou de sécurité permettant une authentification visuelle ou optique.Info
- Publication number
- OA08764A OA08764A OA59207A OA59207A OA08764A OA 08764 A OA08764 A OA 08764A OA 59207 A OA59207 A OA 59207A OA 59207 A OA59207 A OA 59207A OA 08764 A OA08764 A OA 08764A
- Authority
- OA
- OAPI
- Prior art keywords
- fiduciary
- color
- marked
- series
- long
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title 1
- 230000000007 visual effect Effects 0.000 title 1
- 239000000463 material Substances 0.000 abstract 3
- 230000005923 long-lasting effect Effects 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 abstract 1
- 238000000576 coating method Methods 0.000 abstract 1
- 230000010354 integration Effects 0.000 abstract 1
- 239000011159 matrix material Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 230000005855 radiation Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
- 238000001429 visible spectrum Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/21—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose for multiple purposes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/328—Diffraction gratings; Holograms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/351—Translucent or partly translucent parts, e.g. windows
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/48—Elements suited for physical verification, e.g. by irradiation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N21/643—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" non-biological material
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/08—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means
- G06K19/10—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards
- G06K19/14—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code using markings of different kinds or more than one marking of the same kind in the same record carrier, e.g. one marking being sensed by optical and the other by magnetic means at least one kind of marking being used for authentication, e.g. of credit or identity cards the marking being sensed by radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
- B42D25/387—Special inks absorbing or reflecting ultraviolet light
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
- G01N2021/6439—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" with indicators, stains, dyes, tags, labels, marks
- G01N2021/6441—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes" with indicators, stains, dyes, tags, labels, marks with two or more labels
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Immunology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Finance (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Optics & Photonics (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Molecular Biology (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Credit Cards Or The Like (AREA)
- Paper (AREA)
- Luminescent Compositions (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Holo Graphy (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
- Paints Or Removers (AREA)
- Toys (AREA)
- Developing Agents For Electrophotography (AREA)
- Materials For Medical Uses (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8614161A FR2605123B1 (fr) | 1986-10-10 | 1986-10-10 | Objet fiduciaire ou de securite permettant une authentification visuelle ou optique |
Publications (1)
Publication Number | Publication Date |
---|---|
OA08764A true OA08764A (fr) | 1989-03-31 |
Family
ID=9339768
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
OA59207A OA08764A (fr) | 1986-10-10 | 1987-10-09 | Objet fiduciaire ou de sécurité permettant une authentification visuelle ou optique. |
Country Status (10)
Country | Link |
---|---|
US (1) | US4874188A (da) |
EP (1) | EP0265323B2 (da) |
AT (1) | ATE74829T1 (da) |
DE (1) | DE3778288D1 (da) |
DK (1) | DK171227B1 (da) |
ES (1) | ES2032463T5 (da) |
FR (1) | FR2605123B1 (da) |
GR (1) | GR3005186T3 (da) |
OA (1) | OA08764A (da) |
TN (1) | TNSN87111A1 (da) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8903300D0 (en) * | 1989-02-14 | 1989-04-05 | Rue Company The Plc De | Ink composition |
EP0430810A1 (fr) * | 1989-11-30 | 1991-06-05 | Arjo Wiggins S.A. | Support de sécurité comprenant un élément collectant un rayonnement et conduisant par réflexion, à une extrémité de l'élément, un rayonnement induit |
AT403967B (de) * | 1992-11-18 | 1998-07-27 | Oesterr Nationalbank | Dokument und folienaufbau zur herstellung eines dokumentes |
US5622807A (en) * | 1994-11-14 | 1997-04-22 | Hewlett-Packard Company | Phosphor film composition for use in image capture |
DE29513468U1 (de) * | 1995-08-22 | 1997-01-02 | Hummel GmbH & Co., 71106 Magstadt | Fälschungssicheres Dokument |
DE19735293C2 (de) † | 1997-08-14 | 2003-06-12 | Bundesdruckerei Gmbh | Wert- und Sicherheitserzeugnis mit Lumineszenzelement |
US6250549B1 (en) | 1998-06-17 | 2001-06-26 | Defabio, Jr. Daniel J. | Method for authenticating signatures and memorabilia kit employing same |
DE19829004A1 (de) * | 1998-06-30 | 2000-01-05 | Giesecke & Devrient Gmbh | Sicherheitspapier |
US6297508B1 (en) | 1998-08-10 | 2001-10-02 | Cryovac Inc. | Method of determining authenticity of a packaged product |
DE19860093B4 (de) * | 1998-12-23 | 2008-10-09 | Giesecke & Devrient Gmbh | Echtheitsmerkmalskombination für Wertdokumente |
JP3978961B2 (ja) | 1998-12-25 | 2007-09-19 | 特種製紙株式会社 | 偽造防止用紙に使用する蛍光発色粒子、その製造方法、及び蛍光発色粒子を使用した偽造防止用紙 |
FR2828698B1 (fr) * | 2001-08-14 | 2003-11-21 | Banque De France | Composition de marquage de securite a cascade lumineuse |
FR2828697B1 (fr) * | 2001-08-14 | 2003-11-21 | Banque De France | Composition de marquage anticopie |
FR2868093B1 (fr) * | 2004-03-26 | 2007-07-13 | Honnorat Rech S & Services Sar | Papier de securite couche |
US7597961B2 (en) * | 2004-07-13 | 2009-10-06 | Sabic Innovative Plastics Ip B.V. | Authenticatable article and method of authenticating |
FR2883653B1 (fr) * | 2005-03-22 | 2007-05-25 | Gemplus Sa | Module electronique et carte a puce avec indicateur lumineux |
EP2075767A1 (fr) | 2007-12-27 | 2009-07-01 | Banque Nationale de Belgique | Dispositif anti-contrefaçon bicouche |
CH709226B1 (de) * | 2014-02-03 | 2018-02-15 | Daniel Rytz Dr | Verfahren zur Bildung eines Fensters als Sicherheitsmerkmal und Objekt mit einem fluoreszierenden Fenster als Sicherheitsmerkmal. |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE667012C (de) * | 1932-10-05 | 1938-11-02 | Oskar Denzler Dr | Verfahren zur Herstellung von Sicherheitspapier, Banknoten, Dokumenten, Textilstoffen oder aehnlichen Werkstoffen mit Geheimkennzeichnung |
GB1286622A (en) * | 1968-08-22 | 1972-08-23 | Nuclear Entpr Ltd | Organic solution scintillator |
GB1422526A (en) * | 1972-03-28 | 1976-01-28 | Koch Light Lab Ltd | Scintillators |
US4208300A (en) * | 1973-07-11 | 1980-06-17 | Gravisse Philippe E | Photoluminescent materials and method of manufacturing same |
FR2367810A2 (fr) * | 1976-10-15 | 1978-05-12 | Bric | Perfectionnements aux produits photoluminescents dans leur masse |
FR2329736A1 (fr) * | 1975-10-31 | 1977-05-27 | Bric | Perfectionnement aux produits photoluminescents dans leur masse |
US4161388A (en) * | 1977-03-17 | 1979-07-17 | Gte Sylvania Incorporated | Signal device having prolonged illumination means |
CA1108666A (en) * | 1978-01-18 | 1981-09-08 | Aubrey D. Walker | Identification matter |
GB2016370B (en) * | 1978-01-18 | 1982-02-17 | Post Office | Credit cards security documents and the like |
ES8203280A1 (es) * | 1980-05-30 | 1982-04-01 | Gao Ges Automation Org | Perfeccionamientos en la fabricacion de papel moneda y simi-lares |
DE3020652A1 (de) * | 1980-05-30 | 1981-12-10 | GAO Gesellschaft für Automation und Organisation mbH, 8000 München | Wertpapier mit echtheitsmerkmalen in form von lumineszierenden substanzen und verfahren zur aenderung derselben |
US4387112A (en) * | 1980-10-23 | 1983-06-07 | Blach Rodney J | Article identification process and articles for practice thereof |
US4705300A (en) * | 1984-07-13 | 1987-11-10 | Optical Coating Laboratory, Inc. | Thin film optically variable article and method having gold to green color shift for currency authentication |
-
1986
- 1986-10-10 FR FR8614161A patent/FR2605123B1/fr not_active Expired
-
1987
- 1987-10-08 US US07/105,741 patent/US4874188A/en not_active Expired - Lifetime
- 1987-10-09 DK DK529287A patent/DK171227B1/da not_active IP Right Cessation
- 1987-10-09 AT AT87402263T patent/ATE74829T1/de not_active IP Right Cessation
- 1987-10-09 EP EP87402263A patent/EP0265323B2/fr not_active Expired - Lifetime
- 1987-10-09 OA OA59207A patent/OA08764A/xx unknown
- 1987-10-09 ES ES87402263T patent/ES2032463T5/es not_active Expired - Lifetime
- 1987-10-09 DE DE8787402263T patent/DE3778288D1/de not_active Expired - Lifetime
- 1987-10-12 TN TNTNSN87111A patent/TNSN87111A1/fr unknown
-
1992
- 1992-07-15 GR GR920401534T patent/GR3005186T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
DK529287D0 (da) | 1987-10-09 |
EP0265323A1 (fr) | 1988-04-27 |
GR3005186T3 (da) | 1993-05-24 |
ATE74829T1 (de) | 1992-05-15 |
DK171227B1 (da) | 1996-08-05 |
ES2032463T5 (es) | 2002-05-16 |
FR2605123B1 (fr) | 1989-07-07 |
ES2032463T3 (es) | 1993-02-16 |
FR2605123A1 (fr) | 1988-04-15 |
DE3778288D1 (de) | 1992-05-21 |
TNSN87111A1 (fr) | 1990-01-01 |
DK529287A (da) | 1988-04-11 |
EP0265323B2 (fr) | 2001-11-07 |
EP0265323B1 (fr) | 1992-04-15 |
US4874188A (en) | 1989-10-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
OA08764A (fr) | Objet fiduciaire ou de sécurité permettant une authentification visuelle ou optique. | |
CA2401071C (en) | Method for producing laser-inscribable data carriers and data carriers produced thereby | |
US6138913A (en) | Security document and method using invisible coded markings | |
CN1098774C (zh) | 证卷纸的生产方法和检验方法 | |
FI894957A0 (fi) | Langan tai liuskan muotoinen, arvopapereihin upotettava varmuuselementti ja sen valmistusmenetelmät | |
ES2108814T3 (es) | Documento de seguridad con un soporte transparente o translucido y que contiene pigmentos de interferencia. | |
US20170106691A1 (en) | Document comprising at least two photoluminescent images, security film and protective security method | |
RU2004122634A (ru) | Защитный элемент для защищенной от подделки бумаги и ценных документов | |
TW400284B (en) | Visually identifiable optical element | |
DE3784257D1 (de) | Sicherheitsdokument mit darin eingelagertem sicherheitsfaden. | |
GB1510832A (en) | Security document having a safeguard against forgery of falsification | |
EP1372975B1 (de) | Unsichtbare laserbeschriftung als sicherheitsmerkmal für kunststoffkarten und vorrichtungen zum detektieren von sicherheitsmarkierungen | |
DE102013200895A1 (de) | Wert- oder Sicherheitsprodukt sowie Verfahren zur Herstellung eines Sicherheitsmerkmals auf oder in dem Wert- oder Sicherheitsprodukt | |
ES440708A1 (es) | Procedimiento de fabricacion de una hoja termoplastica de material sintetico con particulas modificadoras de la radia-cion. | |
US20060204709A1 (en) | Housing for a portable device, and method for making the same | |
US3594933A (en) | Identification device | |
RU2220449C1 (ru) | Способ маркирования изделий с помощью набора меток и метка для маркирования | |
JP7055131B2 (ja) | 安全要素及び安全要素を備えた有価文書 | |
GB1123274A (en) | Identification document | |
GB8329494D0 (en) | Identity cards & c | |
CN114450578A (zh) | 一种包括荧光标记颗粒的物品及其识别方法 | |
RU2345412C1 (ru) | Способ маркировки и идентификации объекта | |
JPS5538513A (en) | Copying preventing device | |
RU182569U1 (ru) | Почтовая марка на самоклеящейся бумаге | |
EP4080863A1 (en) | Signatures and labels in a blockchain derived from digital images |