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 0x32f2b24a8434151380136cc95c54aebbe930b866030e19895ea8ecc4fbade50b. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9e472926-58bf-4be6-87b8-ab12f2c5be3f.json and https://artists.proofprofile.net/proofs/artist/9e472926-58bf-4be6-87b8-ab12f2c5be3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Musique pour le Cours de Danse Classique [Essential Edition]
Exercice preparatoire (3/4:32): 知らない国々[子供の情景]
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 0xbef6b8892a46c06ccc8f722f03fe1ccc25cddeacc47b24c10bf65f9a864e5a14. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T13:40:16Z), 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/JPH291622701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73e8f7abe92a99ef66a39b6f7f2b805056d999f3586f412a4eef43eefef0d6c1. Chain 2 (Bitcoin): anchored in block 958935 (2026-07-20T22:08:19Z), 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/JPH291723108.
Battements tendus I (2/4:64): Air de danse No. 2 [モイーズ]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x313f5b36385ebb5773862065939ab6df99d8c7c7075b29aaf4c9ac453c9bb15d. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:05:37Z), 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/JPH291723111.
Battements tendus jetes (2/4:32): グリジのヴァリエーション[パ・ド・カトル]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x741f1f8f86d2f587bb35f9cfbe945d5c6cc80589815d13a69ec106aa0310e03a. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/JPH291622810.
Ronds de Jambe a terre (6/8:32+16): シシリエンヌ
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cc9a4dd0999c5b8e825f6625a5df51471e3d5bbcf4f11abd473cbc93faa4bd5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/JPH291622712.