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 0xbf9b2f0e2dc4295c72038009e85e9a8ac4d3a7259c62a2dc7a3d16e32621eaae. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b739603-0eae-4891-b5f6-4ef7d33e0628.json and https://artists.proofprofile.net/proofs/artist/3b739603-0eae-4891-b5f6-4ef7d33e0628.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 0x80c31062d3e8bcc1602a243a8582e7ad727c9f028499017fc9b2b5e5c4f67331. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:21:19Z), 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/CA0817200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6d48430f3045792f100785988e02920ef58c504702efe8708178e5054d4ec71. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/CA0817200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4fb34e0e5d0731b9275d066b17b157584eafe0eafacad1b55322bf05a733e73a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/US27Q1948001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33cbe9cf9e9d5ee59d270d60980e18e236ff789b18720fbb020b534a8a5d9e67. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/US27Q1948005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94c4738cdc8e22001fe60a1b6954a251bc5765afd4f967b9505fdacc7425760e. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:33:37Z), 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/US27Q1948007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xddab207045777efd74290d13f117772d2069751cbe801d8ef9626565e1c46d02. Chain 2 (Bitcoin): anchored in block 958541 (2026-07-18T11:37:54Z), 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/US27Q1948008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c31f3728ac1bdaf4ae0bd3680412f4c20425b6026762ecbd874a1dd16cc30bf. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/US27Q1948009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af271def66a7269a95d084d2d2b683169a11ef7771efb7e3df3103ebf365ab8. 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/US27Q2458502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c2d43463b8e571f29e17abf68a969e8ea72036285b5c8d0f1aa3a20df37ad2b. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US27Q2152002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04afc91ad440196a8b11714d5e2e49ff8b23fbc9d932a8a51d57f827789c4ffa. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/US27Q2152006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x536ae6df9795b773d55a29e5dec94f8772483cea30f37f40c56ec0a7a5bbefe1. 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/US27Q2152008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe081084461485b11052d57d63909c8e0ab23facbebc4a25b7f02f9cf7db1da6b. 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/US27Q2152011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7ce25217b63f3807779653304e2e08c6f12566d1c45480f44784b600baffabd. 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/US27Q2152013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb12709c6824b8377c7323763876a055e967e8b71143a6f317250d5f99e875f91. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US27Q1736303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66e343058e9a0745a03418f54cafca1c4905d297ec54a85c317d8f2da737d9d9. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US27Q1736304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09f5c50ac8fb3f44a9db6217e2d388153945cf64fd7886204664a35dd5126c7a. 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/US27Q1736308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb940450c435ca409222810b013a3fc87415bb6042b1e1daf5d39c55611390aa. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US27Q1736309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x451e99a72a6c4f900abb9d02b407be3d084c6c230f3344b7dc3d2993d71a95fa. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US27Q1563252.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2647f3d8dadca1a7fb6d9bc0c790320c2f325382722ac8f91f29b3ecc124cf45. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/US27Q1563253.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f822e26486b3fa2f65bb2b40db76769d58fe52bb3e74510e37b59bf2589f70c. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US27Q1563256.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b83ac24ed1a9878fad8cffd956f67827f8c4c889e9e74d7aad9a89074470c7d. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/US27Q1532511.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c6ca33967fcde122b6e41368a4d37a93f20c182b40e80227de95b54c8010478. 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/US27Q1532512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af271def66a7269a95d084d2d2b683169a11ef7771efb7e3df3103ebf365ab8. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US27Q2458502.
Tres Grand Serpent / What Are They Doing In Heaven Today?
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed7b4e0b95cc29ad3c55f731376fe191ce8691ab154ad76a3b586a2d40891a44. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US27Q1640542.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40ea57b8cfd5673a395a3afb371c77825d466360c59feb62e9ac5773e92252bd. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/US27Q1540342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf99c0b322c10c1813fb265b54ea9ff683126581a53e0cdb3b029e2a0ba8c93b4. 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/TCAER2088968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1aa95d9a87c8b0a6685d6df3c07238d75c13e4f11c2f76ef70afdd61dbff592. 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/UKWYC2000005.