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 0xff9465e53b2d226df084efb5c66f43bca13bc74d06e182402e787939b1e87e68. Chain 2 (Bitcoin): anchored in block 953730 (2026-06-15T02:47:28Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/937fde6d-bfb1-47ea-bfd7-56a741aea3e9.json and https://artists.proofprofile.net/proofs/artist/937fde6d-bfb1-47ea-bfd7-56a741aea3e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Nando de mo Waraou (MILLION LIVE! Version)
なんどでも笑おう【ミリオンライブ！盤】
なんどでも笑おう - ミリオンライブ！Ver.
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 0xd69d76962293d1f3fdaf33182cac352f28be1d773195c5bfb63410229ff940dc. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/JPI102001135.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d6c561c551fd616b3dd0c86be9eb4db2548eb4dfdc6db6e9794f5dc9b3b4c7. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/JPI102101770.
THE IDOLM@STER STARLIT SEASON 00 GR@TITUDE (ランティス盤)
THE IDOLM@STER MILLION ANIMATION THE@TER 『Rat A Tat!!!』
THE IDOLM@STER MILLION ANIMATION THE@TER "Rat A Tat!!!"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef3cb438e097817a3d1a767037836fea35792fea432ad5ca3f197249d91d6d71. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/JPI102301786.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0439cbd7ab392654a9a7ff16bf8093da2a311d0d955f4035b32452d81f599846. 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/JPI102301787.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0439cbd7ab392654a9a7ff16bf8093da2a311d0d955f4035b32452d81f599846. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/JPI102301787.