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 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 0x5dbb09411066c844ed175808f8665e907238ad2e36a866a12551266f6d3b59f0. 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/95b02e51-2607-462e-818e-bd5e401440fe.json and https://artists.proofprofile.net/proofs/artist/95b02e51-2607-462e-818e-bd5e401440fe.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Brasil Bam Bam Bam (Gilles Peterson Presents Sonzeira) [Deluxe Version]
Brasil Bam Bam Bam (Gilles Peterson Presents Sonzeira)
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 0x32598ed2eaaea69c67d75718bbd5735b2638d0300c33d29d3835d60715abbb2c. 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/GBMEF1400658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x033c36127c8d158232f6e5bb7d8c081c0aebe591d3a107838de635d3d09cddb4. 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/GBMEF1400660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc93019317a94edd4158275f239e55f02e0e616d4dc5688b76cefd5d86f926643. 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/GBMEF1400661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x983542af9a8e39c9398e9f1037e58d538a559ce442b6fd104821ac1fdc80431d. 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/GBMEF1400664.
Brasil Bam Bam Bass (Gilles Peterson Presents Sonzeira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ef3f743ea96f08cfbd2dab7ee9ff7b553c769ea52433d60a3c9c37d39ce20b. 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/GBMEF1600897.
Nós Precisamos de Você (feat. Moses Boyd)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb875579612cff6e3fc720eb16245bc1693bbc18d70a998f53d0289e50cbd522. 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/GBMEF1600898.