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 0x55a8c315994aae3738ec6f2c982ef84e9102f2d18a9c02d738ef02d5d6f51516. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/51393fcb-9bf6-49ed-b337-e0fd6482ffd4.json and https://artists.proofprofile.net/proofs/artist/51393fcb-9bf6-49ed-b337-e0fd6482ffd4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
ヨコハマ・ディビジョン MAD TRIGGER CREW Drama Track1
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 0x328f5414a822ba8906f90408af8c19a8a1605dff84bd378be5f79c4b3e8831c9. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T14:09:59Z), 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/JPKI01716710.
ヨコハマ・ディビジョン MAD TRIGGER CREW Drama Track2
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8abdf58b7a3bc14c42ddeea27fb7a7425c321cfbe5dd3e30f9cf6fed560bb3a9. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/JPKI01716711.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ccf96cb2b6375017962894c2f1ccf5cd7ff91d2d50f2b206c0adfa9dd99610. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/JPKI01917941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c84a6f3236d038c9af222497a217d7863c32a11495d3e5f89cbd4a2d4bebe1b. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:38:12Z), 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/JPKI02412485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11c0d1382d667648210d4d0cfd8ac23916fefb23d1df3790d87fc46ec3f88570. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/JPKI02510073.