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 0x6dd823699a5110830e3773ddf31a659c4863e956c0fb1af91fa20019d4da4c39. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8535f67-9a6c-494b-888e-64200e8fe8c9.json and https://artists.proofprofile.net/proofs/artist/f8535f67-9a6c-494b-888e-64200e8fe8c9.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
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 0x861f887eb7f394c2403b805051c5d53718416ce221b6653b1549a5fcbcb124f5. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA52480066 — a six-check JSON result.
Vamo Pa' La Playa (Dabow G & Lirical 1 G Vibes Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c2b27a922b5ee1b74043c2dcce18e0d750b2e4ee167afdea893fb5e08cd3e6f. Chain 2 (Bitcoin): anchored in block 958185 (2026-07-15T18:19:04Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6F2538016 — a six-check JSON result.
PANIKO (Dabow G & Lirical 1 G Vibes Remix)
Le Salimo a Cazar (Dabow G & Lirical 1 G Vibes Remix)
Le Salimo a Cazar - Dabow G & Lirical 1 G Vibes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2896af9fdef5dd51355c3481d1b151956b53506b79599598254ba78de1e7adb7. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2504374 — a six-check JSON result.
Flaytiando De Pana (Dabow G & Lirical 1 G Vibes Remix)
Me La Roee (Dabow G & Lirical 1 G Vibes Remix)
Me La Roee - Dabow G & Lirical 1 G Vibes Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f28f0d7ca69915fddc562c13a85f798dd4cfe3a3c0a6a48914ba0e31aaca924. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZWFT2594721 — a six-check JSON result.