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 0x618f194c8a791622db93d5d3565cf5b09d6e8923fb56bfc44ddff03dcf6727b3. 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/520f9d42-988c-4876-b4fa-32f1e3237e28.json and https://artists.proofprofile.net/proofs/artist/520f9d42-988c-4876-b4fa-32f1e3237e28.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 0xdd4c4f61a464cfb72299f83408f062c9e0803d269eb4be9eafebf14e117b2ff3. 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/SEXCH2000505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x878789e6ded309cb720df8b6c19a3ac9d8656bfcf697aa265e2da17b7f000e85. Chain 2 (Bitcoin): anchored in block 960264 (2026-07-30T14:36:16Z), 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/SEXCH2000501.
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 0xa603132e9f235f2466639059faa22f54cc1ae6b1d0b49b58a1852a8e064b05bf. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), 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/SEXCH2000502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b9d1bb89fab431c93269a7f6888f7353186d5ac03c64744cae94cb776470fcc. 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/SEXCH2000506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3dd197e6131b5e963333c2196d4e67d93fb1e2477fd06e53a4303d69d17790a. Chain 2 (Bitcoin): anchored in block 960513 (2026-08-01T04:52:22Z), 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/SEXCH2000507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fd1a194ef645e17ccae801f1534dadb806bdce7d4b07b6a20783911fb30206. 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/SEVKF1701601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ef661be70349932638c17024a61706e30541334444230a5db8cc6a34800aed6. 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/SEVKF1701605.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019f1ff51175d1a29b9e38a6d975ab0d5b996c72d875bbf453167be30e74c7f1. 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/SEVKF1701607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x258256a1f02363d8f65ed3ed4f1575a01e0e7d1d5243425de031f1d232e04b87. 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/SEVKF1701501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb95a8734735f45ca5ea85355c7640120d8f38e9a79451c11db1da82fc1930e8. 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/SEVKF1000302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f792ffa39946803003b212f5fed4cfd49390cef9a4fd925bfafad232806f789. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEVKF1000303.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6060d25dab8b4d4abe89f7801092b43183139225971e9f41b7808a69663d5595. 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/SEVKF1000304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96fe34eed6346f23f08b141adc8943f2a88769efb9808447f0f220fbd97147c9. 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/SEVKF1000305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf3217413bb1458135bb2315b22fd5ae9bda161835eff52a5798d4bfd14f89c8. 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/SEVKF1000306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae1f30a7650b031cc4cdf662ca64ef695bfdd3cd3592e303a802b444d858182e. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/SEVKF1000309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1add85521c2e7371d782ba842a2d6f83e9ec10fbaf25bfae6b57000a0ba44933. 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/SEVKF1000310.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d52e80e5bf5b56a84e6a9e3486f6c9fb3aebfe1c63d6f1c10c3b903bffee5e3. 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/SEVKF1000311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8b7b59f0bc51fddf19eab67938e88f414958250c2c4940210b21487bc8d5319. Chain 2 (Bitcoin): anchored in block 959163 (2026-07-22T20:57:08Z), 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/SEVKF1000301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5118e125beae5301ef9d2ecc64b6c5d8a032e4c4c824b609e4829285ad6fe68b. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/SEVKF1000307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1bba3a5494b13743a8f4d3dab7801d4d1fcbf4145ad61556829c5290a2c7d68. 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/SE5BU2050179.
Jenny The Fool (Special Edition For Cars Before -59)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81ce989ee4b6280e780b263bb82566d847ca3f3ad68a5da0002f0951b02de32b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/SEVKF1800201.