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 0xc72b71ae87af1a40dd21f026f0fa9f32b30f30fc42f1371be4d9458ba5d1ace6. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7d55d3a0-8835-4bad-b6bd-16a8a33d3db5.json and https://artists.proofprofile.net/proofs/artist/7d55d3a0-8835-4bad-b6bd-16a8a33d3db5.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 0x0bebda00317d05e3c13bbc8e3697806454af4b146611505231a47b7010b3aeec. Chain 2 (Bitcoin): anchored in block 958774 (2026-07-19T22:07:32Z), 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/QZNWR2204220.
Nketiah's In The Room (Your Defence Is In Trouble)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8da086637f07fafc59f72de537876e06afe4bc747dab8fc64fcbeff249f72221. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/QZNWU2317120.
Straight From Naija (Original by Adhnok)
Kai Havertz Scores Again (Waka Waka) [Arsenal FC]
Mikel Arteta (It Goes Like) [Arsenal FC]
Kai Havertz Scores Again (Sped Up) [Waka Waka]
Bukayo Saka (Running Down the Wing) [Voulez-Vous]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e8349cb8933996681a7adabc3bf880eed53f0a3fd7d87617105405b9968a8ea. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T13:06:05Z), 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/QZK6F2429363.
Riccardo Calafiori (Arsenal FC) [That's Amore]