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 0x41cb4fdc3a06be0455ddee32ecf7d40f5347ea2174ed7109bdd21f81c1a3c70e. 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/HKE672300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe57bcd6371af02a09414fdd3ee72bf6fe5608dbd2f0fd40790475d2906aa7967. 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/HKE672300005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x932fb6e5659eedb634d9766ca4cb5330a4b52021d24c2448518138024406270d. 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/HKE672300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b513f6028a3af8591545889bf472220ca5f2a8437a1b4928d2cc5db5b79ee57. 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/HKE672300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70867f5ce6ae6fdd03e04f19277a4c855f440de04efca0bdbbf51f8e49069ade. 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/HKE672300008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43d5fb85efc99c0a0ff8e1f85a2ab63653eab1ef5fcaa372c7ce32d448a40525. 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/HKE672300009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7b9d21ce839633daff1d57540fbf67a7a5fa3e4950629aa02a96d245880d013. 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/HKE672300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2bca605be572eed508c60ed2408be7499311b84ac1c2cca98031235cfe4c9f. 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/HKE672300011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01764a6ee49cac20c1f9611917e79b59122f727361ff64b86c41c6d3fad84bd5. 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/HKE672300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08daf359ace180b30c20495e322fabb7df70f4fea670ebaf1c6e41663b8a9efd. 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/HKE672300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb18995b4857322f793c8777eb874eadfb434bd8731cdd836a8caf16dd194fa34. 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/HKE672300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e6464592196a8c47f42d9a7ac48952d9a8b524e58629bf9af2a7894995cc152. 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/HKE672300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10f6013b27258cca7cf3e6565420e2170e0edb9d6954b6e340ffb8e3859c5ef7. 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/HKE672300016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee6956f8985053a57c4b3275d65b1f0e7b6a9f699b57039e18818d4566ff387c. 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/HKE672300017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ba628e486311cf8bf02062ccfa4777e4194f84a5d40c93ef3ba995b30b1c24. 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/HKE672300018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48fb0060e5e737747bbddc2f5fd9518159b06376a224cccff0947c3cd040fe3f. 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/HKE672300019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86442c9870c57ca4dbf455d8972b777464903d4ebaa28cfac0ae7f5d3a214c83. 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/HKE672300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x261f7c5d75d316ad7ec279c76592e12a3b6ed2c0ec2717f7b6946535753b8b29. 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/HKE672300021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd0ae3aad02d4d1b843b492bbdb4ebb8aaf20e4855cf296830b571718f3a601c5. 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/HKE672300022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95edc2cf4e200a040ebbb4ce2636bce9eface413897e7ae1f90e275ff72a26b6. 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/HKE672300023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd66d542cb49b6378b125eb09d2e40b54a6c9a51c05eec77a754b8e9f6b2d77de. 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/HKE672200945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4c5cbfd74d531832eb2468e04767837c3bf6bd2f110ed94ed7d50a13c95d372. 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/HKE672300024.