Certificate of authenticity · Verification code 2ZMPLX33BV · Version 1
Aspettatori (feel up the lime) AEI23 - Revisited Anaglyph
Tim Berresheim
| Inventory number | TB19/F 253/1 |
|---|---|
| Year | 2019 |
| Technique | Baryt |
| Dimensions | 60 × 50 cm |
| Edition | 1/10 |
| Issued | 13.11.2026, 08:05 |
Timestamp anchored in Bitcoin, block 975648.
Verification
- …Checksum of the certificate file
- …Artist’s signature
- …Timestamp in Bitcoin
- ·ImageDrop the image file here to compare it with the certificate.
Drop a file here: image, certificate (.json), signature (.sig) or timestamp (.ots). Nothing is uploaded; everything is computed in your browser.
Verification data
- SHA-256 of the certificate file
c929d1e643e39177361ce34bd80f7d73aa4f484c9aa3e12252d52484feea7c87- Signature (Ed25519, Base64)
4OuSziAhd5/c/zCwlyTv/A8AhWfoZ8MvHqUD8e4Fim052JDosKhL2nA13z2zGLR1xuK1PfMiPofIqwC+WBO1Cw==- Artist’s public key
0a347c3cdcf869a45213eb6eea4e65d4f60adb6d1fe7d9be59eace1f04584708- SHA-256 of the main image
35b2f7ef40db238a41e6dc11bfc7d086d89544d1fcde0e8b3d46d3e862797665
How to verify this independently of this page: hash the JSON file with SHA-256; the value must match the checksum above. Verify the signature against that checksum with the public key (Ed25519). Check the .ots file together with the JSON file at opentimestamps.org: this proves since when the checksum has been in the Bitcoin blockchain. The proof depends neither on this address nor on the artist, only on certificate, key and blockchain.