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 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 0x54606f01cdfbb926d42879d862b5363468d9fecf9be014032ab4faa62f4deaea. 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/b2a24f38-d417-45b8-81d2-eac8b07f2f99.json and https://artists.proofprofile.net/proofs/artist/b2a24f38-d417-45b8-81d2-eac8b07f2f99.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Intermission Teleporter: (Know Thy Energy)
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 0x7b8f06fa808fe109db7eb9d3bdb22c4d084c3c285b3cc84827f1947daf897b15. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAGK2235427.
loving you was a bad idea (Ominous Voices Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd4bb4d0dbcad63be7d785f308258ab47b3c06cc13d60346caa2dc6ef83468f9. 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/CA5KR2384185.
drunk and confused - Ominous Voices Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1379eac4c64959e8c2f6c2170fc028b6bf21c191191fc5c96087fd1e8169231. 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/CA5KR2384186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68e50775793a6fb0bea524af8a6baa6ee27c56974614364d71982da6f9999c0c. 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/CA5KR2384187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d53b101dd288b00e9332036e020b64a7256d158605d2babb7666f8613d739e1. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/TCAHP2380847.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01db4f40d87bad1a55132ca483b37714b4886e978ae3060333a788a53d281bdf. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/TCAIA2424272.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7c60496b6dda614c55e1273bf2ea3d62483ae9f4f00a560c5cc1dedd9618d00. 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/TCAIG2423619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f58c96b3ccb57dd974475ae2a444622c95925096c25e8a71e0a480892d16e48. 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/CA5KR2474163.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991559501842b1259b5717fc069f150d150d2cf5c15aadb2987f100fdf03dee3. 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/TCAIN2436763.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe810471a08631489a011fe9131110a2e5d23717d56a50f511efb851460a2b91. 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/CA5KR2481560.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0ac0b14731fe73f27dcd4a7b27b9e3e692d3ef01612229555c1f6eb5e12501. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TCAIM2436929.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5db80c58c4eb3f1b8a0e87c9bb73ed25d0e0b1c35bc1d5fe7b77e82615daa7d. 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/QZTGW2400087.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x453c29d830873db0c6d3b8884e750e91566902e3e0e6f0191281a724d04e8733. 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/QZTGW2400632.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bd32aa0254f682ee7f0cba021fbaebff4a6f56816195f571ff573e1cc53cbb7. 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/QZTGW2400633.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x980a838a9fec590d03425b2f65cd62e912143e8990ef4531aee1480ad076f126. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-22T00:45:53Z), 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/TCAIW2435873.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75085874e5df9a26951cd988da3811264c7df7e3be0b3537f90cf3c5ce53285e. Chain 2 (Bitcoin): anchored in block 958873 (2026-07-20T11:48:10Z), 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/QZTGW2401644.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdad577e822e3c09fd24a596bfaa5e7a751b898e6c8986f4ce23042cd79d8c06. 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/QZTGW2400722.