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 0xf62430f356b3feb9156b92d2dd8cd0682f695cf98a9a730e9049ff4af4c41c5b. 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/bef33a6c-5312-42eb-9bb5-11183c3e94c2.json and https://artists.proofprofile.net/proofs/artist/bef33a6c-5312-42eb-9bb5-11183c3e94c2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Encanto: La fantastique famille Madrigal (Bande Originale Française du Film)
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 0x6e1e1813296647c439b0c68beb7a79aaccd51d8ca552dbb410ae82af2117033c. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/USWD12113108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743cbc24127e7eb8cab95af80ab467b4736559973e9921bc99c541afbd53f520. 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/USWD12113109.
Ne parlons pas de Bruno - De "Encanto: La fantastique famille Madrigal"/Bande Originale Française du Film
We Don’t Talk About Bruno (From "Encanto")
Que sais-je faire d'autre? - De "Encanto: La fantastique famille Madrigal"/Bande Originale Française du Film
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x743cbc24127e7eb8cab95af80ab467b4736559973e9921bc99c541afbd53f520. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), 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/USWD12113109.