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 0x5f9729ad537edf1a01df9411feaedfdcec88a2f2c559678f5e5fda4fa1a1bc1e. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d26ead69-7d8d-4cd3-960d-58085aea0e98.json and https://artists.proofprofile.net/proofs/artist/d26ead69-7d8d-4cd3-960d-58085aea0e98.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 0xf90c46dd7eb1b9408ba843cd165ce2aa2d178c83d443986cbd1170b8a52b3d4e. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/BRAMD0000195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd945f3326a21d3b7b09bb2a43e840815b94e5e78a14767e78189e3ebbe9cba83. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/BRAMD0000206.
Cantina Nostra - Um Lugar Onde a Vida É Bela! (Vol. 2)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba9c291a9d2efca34290d75eed46a6eb45175abc9bdc1225e384a5b20080cf81. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BRAMD0000611.
Cantina Nostra - Um Lugar Onde a Vida É Bela! (Vol. 1)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6a75e5f811a804087d637e3df9687792939830867f5d243a3f498d1767d5cb52. 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/BRAMD0000644.
Tarantela Napoletana / Comme Facette Mammetta / Funiculi Funiculá
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa83f1eac1189bc300519e37e1cef9f456e5b3bb77f3e515a17670c6828ed6a0f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T18:27:57Z), 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/BRAMD0000651.