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 0x95984bce6ad6b1ed491704a20de09fae3c83e6a59f354a77789c7de4694e891b. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/45470a22-0aa8-46b8-8d1c-b5d46fc3577e.json and https://artists.proofprofile.net/proofs/artist/45470a22-0aa8-46b8-8d1c-b5d46fc3577e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ジムノペディ 第２番（『フェイブルマンズ』より）
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 0x5e047f0743b59c00a1ddd3b48335dc2ca6856daae317b1ec71a609ca64d91315. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/USZDG0600047.
グノシエンヌ 第１番（『パゾリーニ・スキャンダル』より）
映画の中のクラシック サティの映画館
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacacc439dbfc05f8df13f2b6d57bd93edd805b91656e7f21551b040815a457f1. 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/USZDG0600621.
ジムノペディ 第３番（『私の中のもうひとりの私』より）
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78ca4db0802a851b21d0d93682227a5d2aaf511eff6b5f8a42b91e35d2c69e0c. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:56:41Z), 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/USZGD2000014.