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 0x14607e37c1a6a2b912ac1e725aed42769cc72dff8d85602cbb6deb2d9a6087f5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/78dd4c1e-1881-450f-aec4-7b2b6232784a.json and https://artists.proofprofile.net/proofs/artist/78dd4c1e-1881-450f-aec4-7b2b6232784a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Me Cansé de Buscarte (Sent 1: Superación)
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 0xd971987dc6cf0601627c7f0b69145f778ce88a7fcf8519b25d7a900b2d25e488. 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/ES71G2141478.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ca6b8f9fb305ea1b8de87f5c41a236bf6d7e6f32dda094a68d8a5274be64e6c. 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/ES71G2227171.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201fb7a0c6e65a77541aafed9f6fb9f737f84316d1b75668f79ab2d3a5980973. 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/ES71G2307837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x201fb7a0c6e65a77541aafed9f6fb9f737f84316d1b75668f79ab2d3a5980973. 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/ES71G2307837.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe799b65156e2bab4422467eafa038d2089746d52a96474809fc67048fe50f26d. 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/ES71G2312139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5ed5568217ec3d09c87fa96c61f8280e5aa70013b901984a31468abd178a0f5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ES71G2312137.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f46858b61213b45cb3d38f1df8fd60dce76435760e23b7e972fad3bbb7ff53e. Chain 2 (Bitcoin): anchored in block 958368 (2026-07-17T07:55:18Z), 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/ES71G2312136.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05df0a4dda98a9d1ae1be0238cefba0f8ac1b80f8aee80162375346ea09fdac1. 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/QZW9N2212676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a40c47305af3513c51228b3b51e52f6776a184b3ce0da4c5a3e1f9ec1c2b6de. 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/ARIXB2310216.