Benno Gut (1 April 1897 – 8 December 1970) was a Benedictine monk of the Archabbey of Maria Einsiedeln, Switzerland, and a cardinal of the Roman Catholic Church. He served as prefect of the Congregat
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf45a3e3a4d2e835ba794730c59516f244cc81dc5076eb9d9fbc2db4488cbcdf. Chain 2 (Bitcoin): anchored in block 953697 (2026-06-14T21:49:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/672dabe3-de7c-48af-acad-3dbc71cb4c95.json and https://artists.proofprofile.net/proofs/artist/672dabe3-de7c-48af-acad-3dbc71cb4c95.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81f2c4cf364861a77a10137d3803d2217f77e9594153f6f1e1bad03848af71c0. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf6810a6fe71c6a925c6e295c4632723433529a9c1368e5604d733e5b5350e24. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a8221682bca0cea0441591bbc5bbe5f42fb4e7b70aeff38d0fc73d24992c2e1. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d04b2be10b4e17df7770ff2f0833f4782f289ccd2716e63bfd1355258a21216. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x596f99129105894ddd3621a72fd00a1323a74f506a0a55f937d59706ce31d93a. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d7865366a6d90e60b559c2f122cedf8286ef772f8227bcc8947e5745cf79c99. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797902.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1e3dbb40b6a991ec51be0551cb8ae5b781731d8a72e45c0287e24cdcf8ff71f. Chain 2 (Bitcoin): anchored in block 960236 (2026-07-30T09:37:10Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797935.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4efe73e5a34c845e4d4e2c60a530cf97d2e9774098a59f307917c63684794df. Chain 2 (Bitcoin): anchored in block 960418 (2026-07-31T15:20:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797898.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee88c6fa516ecb48fa8d5ed06f74434efea739386e277a1b70048fcbdeace011. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADB1797067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb895756ee59ac53dc6e367d8954d95065e27de277b6addfcc522fe950fd66c24. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADP1871198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91e77c55d1e0df7c25e4aa6b51002e09ead59a61cd4b3261413dcfcd29c3906b. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADP1871197.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6b4ea1a3261d1d63c866af677e87b98b0a8a41f34e5b5b790b96b2b2e39c066. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADP1871201.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efa4d815a7776c2d787d53756e675d74ef94dd12d3b6db0279a379656558d55. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADP1871204.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5549256815971144efde90eac4c9193324d1ac44eb77c41e6c08c323cf00a7c. Chain 2 (Bitcoin): anchored in block 960481 (2026-07-31T23:51:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADP1871209.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02f0efb1ec4748b961b0f05dca56c49ef640ff9d5172e4e7017bca2b1c4bb042. Chain 2 (Bitcoin): anchored in block 960422 (2026-07-31T15:27:29Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADP1871213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e89def38c95cc2ded46a72a8df43af92439204e67d88cc41d1f06160992b6e. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADX1805349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4a38ad88a7af42c17ae950b1e84f709f7ef72ab59edf2d2fdb1c216cb44e99d. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADX1805346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b7adda5b7e56d01d4b3eb70847cff2c70879158558dc66196e9c9acf857a192. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADX1805347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97794cc9fc13514ce0891e237369d9705a8991a128a4bc3bc2357d69f8ee2b20. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADX1805350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde365a812f95d8cf541f419f74932ce753dae0d37ca48ff865e6fa9632a3313e. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8644677127b708c2eb5b208d4613c71313b89bd65ab46583da8ffece82820346. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286346.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78fa540873b32ba3d90b7ee0c05beb2fb05eda69ad196d777d01e5989c9da1ae. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x811232a5e8935fbc53eb7f0ed49e6da362ddd349d92709416535d0392bf232e1. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a517e30bc3c49fc3a8e815a1dbd1b0e7800b5f98307c9661a7da28f2b9baea3. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfaed48e0030052f8bbd4e1d886db88135b9188545c78bd0ebdf96161a5555bed. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dca9f9d0f0783772314ed4a5a0c3e8d1cc2ccdfb9cdebb243a40b3abd9fa84a. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83f29d26b45436e034dd50742df54f92da942ce1c2bc298309066c943344e22d. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286347.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95220445c7c0b2c902e68e32b29dd07d59015b6e5480ded9a8653a564cde70c8. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x723aebe342fd7660898c5a477cb14db8b72ca7249b3c4aeedbfa16e816b185dc. Chain 2 (Bitcoin): anchored in block 960153 (2026-07-29T21:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN32236769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8418de8ba13940af87058dc51028db9e4d2b8535ffc922aeab0bf871ba2b13e1. Chain 2 (Bitcoin): anchored in block 960459 (2026-07-31T20:22:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ca9aa9d88eaa9df41c84214740c751b6d4077c5f192dc906a9ff996f26016a5. Chain 2 (Bitcoin): anchored in block 960250 (2026-07-30T11:13:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286352.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27539ff89518344bec99bb3908f59238c0484e62a07c513c4e734a5bfd5ff9e1. Chain 2 (Bitcoin): anchored in block 960485 (2026-08-01T00:10:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4177c21a98cd6decf4a603ffba29ae09e40a2f4a3731b2cbf4b727718f5809db. Chain 2 (Bitcoin): anchored in block 960506 (2026-08-01T03:50:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZRP42286356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae52b7bc17b9532786d1902447d93cee33c6d9294fdc1537e2b18994b562fb4. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFS2582517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac32bc4d248920d4feb4422fac43a2867b7893b31390e1e331b503f69752101c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CH7811821580.