1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xa33f7856d91f29bd176258d6d567946a4971230d7b95e29dd11224a2512280a1. 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/53e2c739-a930-4261-af62-497ef8ae093b.json and https://artists.proofprofile.net/proofs/artist/53e2c739-a930-4261-af62-497ef8ae093b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
思い出になる前に -Silent Starry Night- - Remastered
I LOVE YOU - SPICY CHOCOLATE REMIX (Remastered)
TWO the PARADISE feat. PES -BABY-T REMIX-
{"copyright_id":"0x5ade7cf8c778e8f8b9091051851e585dc3befe1be16ad443425c4aafc3198e65","isrc":"JPVI01901439","name":"大切なひと -DJ HASEBE REMIX-","registered_at":"2026-06-20T08:32:59Z","spotify_id":"06jjqL2UNnaMXqmSZ3LAi5","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ade7cf8c778e8f8b9091051851e585dc3befe1be16ad443425c4aafc3198e65. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/06jjqL2UNnaMXqmSZ3LAi5.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/06jjqL2UNnaMXqmSZ3LAi5.
思い出になる前に -Silent Starry Night- (Remastered)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96878e750a45144b4e247868bbd150ad014787d343d98a9cc115fa2439529a69. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2yCtJqa87dYkREA5lKLHnR.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/2yCtJqa87dYkREA5lKLHnR.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96878e750a45144b4e247868bbd150ad014787d343d98a9cc115fa2439529a69. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1LJAjIFK5tw2dWB0oW30Zs.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/1LJAjIFK5tw2dWB0oW30Zs.