Reproducing hash values from printed documents to validate with a blockchain

    公开(公告)号:US11550959B2

    公开(公告)日:2023-01-10

    申请号:US17086778

    申请日:2020-11-02

    申请人: Kelce S Wilson

    发明人: Kelce S Wilson

    摘要: A system and method are disclosed for rendering printed documents tamper evident. Examples render classes of documents tamper evident with cryptographic level security or detect tampering events, where such security was previously unavailable, for example, in documents printed using common printers without special paper or ink. Examples enable proving the date of document content without the need for expensive third party archival, including documents held, since their creation, entirely in secrecy or in untrustworthy environments, such as on easily-altered, publicly-accessible internet sites. Examples can use a document's prior registration date in a blockchain to establish a no-later than date-of-existence for that document. Examples can extend the useful life of integrity verification algorithms, such as hash functions, even when applied to binary executable files. Examples can efficiently identify whether multiple document versions are substantially similar, even if they are not identical, thus potentially reducing storage space requirements.

    Method and system for determining if paper currency has numismatic value

    公开(公告)号:US11475727B2

    公开(公告)日:2022-10-18

    申请号:US16450963

    申请日:2019-06-24

    摘要: Using software to process images and/or digital representations of paper currency to determine if currency has a value greater than the face value of the currency to any person or persons. Software that can determine from images and/or digital representations (known or unknown) numismatic value, or value greater than the face value of the currency to any person or persons and indicia of numismatic value, or increased value, including, but not limited to: ink smearing, misaligned serial numbers, misaligned seals on currency, non-matching serial numbers, off center printing, off-center cutting, paper currency of small or limited print runs, fancy serial numbers, missing or off-center watermarks, errors in security features, holograms, ultra-violet features, magnetic features, microprinting, etc. to determine a numismatic value.

    Coded polymer substrates for banknote authentication

    公开(公告)号:US11263856B2

    公开(公告)日:2022-03-01

    申请号:US16702088

    申请日:2019-12-03

    发明人: Nabil Lawandy

    摘要: A method and system for authenticating an item includes providing the item including a polymer substrate comprising a polymer material and a doping material, the polymer material and the doping material configured to transmit radiation laterally through the polymer substrate, and the doping material capable of scattering radiation and absorbing radiation of at least one specific wavelength to generate a spectral signature in a spectral band of wavelengths of the transmitted radiation, irradiating the item with incident radiation characterized by a spectral band of wavelengths spanning a band of wavelengths including the at least one specific wavelength absorbed and scattered by the doping material, detecting the spectral signature after the radiation is transmitted laterally through the polymer substrate, and determining a code associated with the spectral signature.

    Item Validation and Image Evaluation System

    公开(公告)号:US20210019517A1

    公开(公告)日:2021-01-21

    申请号:US17032243

    申请日:2020-09-25

    IPC分类号: G06K9/00 G07D7/202

    摘要: Systems for item validation and image evaluation are provided. In some examples, a system may receive an instrument and associated data. The instrument may be received and a user profile may be retrieved. The user profile may include a plurality of previously processed instruments that have been determined to be valid and/or authentic. The instrument may be compared to the plurality of previously processed instruments to determine whether one or more elements of the instrument being evaluated match one or more corresponding elements of the plurality of previously processed instruments. Matching or non-matching elements may be identified. In some examples, one or more user interfaces may be generated displaying the instruments and including any highlighting or enhancements identifying matching or non-matching elements.

    Method and apparatus for authentication of a 3D structure

    公开(公告)号:US10789463B2

    公开(公告)日:2020-09-29

    申请号:US15985091

    申请日:2018-05-21

    申请人: ALPVISION S.A.

    摘要: New authentication features are proposed that are visible, can be authenticated with a mobile equipment and yet are challenging to counterfeit. In a possible embodiment, the surface of the authentication feature may have three-dimensional characteristics, which can be recognized by a handheld camera, such as a smartphone camera, while it cannot be easily reproduced by a simple scan and print procedure. In a further possible embodiment, at least two different viewpoints of the authentication feature may be acquired using a smartphone camera and the resulting images may be analyzed using the smartphone processor to identify the three-dimensional characteristics of the authentication feature. The manufacturing of the feature may be performed at a low cost by embossing the three dimensional structure on a surface. The authentication feature may be carried by a self-adhesive label or directly embedded on the product packaging.

    PAPER SHEET PROCESSING DEVICE, PAPER SHEET PROCESSING SYSTEM AND PAPER SHEET PROCESSING METHOD

    公开(公告)号:US20200005575A1

    公开(公告)日:2020-01-02

    申请号:US16570766

    申请日:2019-09-13

    申请人: GLORY LTD.

    摘要: A valuable medium handling apparatus configured to handle a plurality of types of valuable media. The valuable medium handling apparatus includes an inlet configured to deposit the plurality of types of valuable media, a setting unit configured to set the types of the valuable media being handled by the apparatus as a first type or a second type, a determination unit configured to determine whether a type of each of the valuable media deposited in the inlet is the first type or the second type based on the setting result of the setting unit and determine whether the valuable medium determined as the first type is a genuine medium or a counterfeit medium, and a plurality of stackers configured to stack the valuable medium of the type determined by the determination unit, the plurality of stackers including a first stacker and a second stacker.

    VERIFICATION OF A SECURITY DOCUMENT
    10.
    发明申请

    公开(公告)号:US20190384955A1

    公开(公告)日:2019-12-19

    申请号:US16470019

    申请日:2017-12-13

    摘要: A method for verifying a security document by means of a reading device wherein first transmission and/or reflection properties of a first region of the security document are detected in a first spectral range by the reading device and a first data set specifying these properties is generated therefrom, wherein the first region at least in some regions overlaps an optical security element arranged on the security document or embedded in the security document and wherein second transmission and/or reflection properties of the first region of the security document are detected in a second spectral range by the reading device and a second data set specifying these properties is generated therefrom, wherein the first spectral range differs from the second spectral range, and wherein, the authenticity of the security document and/or of the security element is checked on the basis of at least the first data set and the second data set.