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 0x3ee2e8b4292acc183ce74918f11dd3920adf317679f15143c47c2f24569ec8ac. Chain 2 (Bitcoin): anchored in block 953762 (2026-06-15T08:21:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/badef244-1e61-458f-a9ed-5f674737a42c.json and https://artists.proofprofile.net/proofs/artist/badef244-1e61-458f-a9ed-5f674737a42c.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 0x590232e15056fd2f127c1806ea4b3dabe04b07d7f543dc1c863186cad6d7617d. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T05:48:39Z), 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/QZRP42206841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x493c72496bd17cce9799e36b03b98abce1e830d6a7a3de9cf95add9ac7681b58. 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/SE6QE2023690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b6673977ab2ae765b85bfaaeff4b6b08929b6a8418d04b4dadcca73b1b0777c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE6QE2023697.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43ec0937e60196a00b3ee1db898f7eca2cee23a715755db656415603a1d458c0. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/SE6QE2023698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5df2f57506634e2bcee953060169a2957b7a189c1cb17211e834355902c4a7d. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T16:37:16Z), 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/SE6QE2023701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0352a774f9afa21208f57cb890f4b888fe68296f86584c4c210e1d86cbc59050. 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/SE5BU2160938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb30107992ea7c104dfe6a743d4d912ab31bbdfc5421abd2e216117536643d005. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:30:19Z), 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/SE5BU2160942.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb82e023719779122f6367f6e5218ec1473ce77a23d06db0f28cf0c5b20eba8ef. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/SE5BU2160944.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2462bb0e74cf9f1001800e1fc57a3d965de65ac130e71ae4739925c936f1ae8. Chain 2 (Bitcoin): anchored in block 958828 (2026-07-20T07:54:50Z), 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/SE6XY2181165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d297824b5a8971cbcda5eff08c415a4e11e6b217d8b9cba3660ffc8fff47bdb. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/SE5752296027.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d2a12ec880ab8df3eaa90e025fbf95f178532a590852696ad1f17fa60f84527. Chain 2 (Bitcoin): anchored in block 958867 (2026-07-20T13:17:42Z), 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/SE5752296038.
La Venganza De Andy Aparicio: Concierto Para Delinquir
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2196ace5f9da976dca16103e21520c3f5db15d29afe77a60744a17f5b5e77b96. 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/QZZ7X2471281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2a5cefd833b7f521129dc2d7b132d8f589b8be6366aa21969cf70743727529. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/QZTBD2550549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e2a5cefd833b7f521129dc2d7b132d8f589b8be6366aa21969cf70743727529. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZTBD2550549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2323a204a0de7cdcf18c86cbd76ed7b8f2d4c9d522df0d49ae4ae3d90a6d6d2. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T04:58:03Z), 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/QZTBD2550550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44435ab340b3f65690727b2f2cf3c126e470bdc571cc4481186101fbb80ad0d7. 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/QZTBD2550551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6799d029d59489e23b6b36cffdfbc77a9f35a7920ac4cafb80948364889c5ee8. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/QT3FA2535608.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f1816f91c2a488305cb8a00a5a83fb8fc477624b2b2c4bfcdc4a594101ba48. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QT3FA2535610.