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 0x6aad7c97c5771f8eb42e9e6019c4581f1477c9bf02dc37d40d1cb4dda7380c59. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/104a7088-8ed2-4f59-8ba0-467181d8c4eb.json and https://artists.proofprofile.net/proofs/artist/104a7088-8ed2-4f59-8ba0-467181d8c4eb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
黄昏二眠ル街 オリジナルサウンドトラック
TASOMACHI: Behind the Twilight ORIGINAL SOUNDTRACK
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 0xbcd1cfe39062b04ed30514790ddc97c2362f4bedb1ec018e2aa07b063bde4d8d. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6ok21zTb4EjCi2VgAnWFLi.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/6ok21zTb4EjCi2VgAnWFLi.
Vieille Ville [feat. Ujico*] - Ujico's side Edit
Vieille Ville [feat. Ujico*] - long ver.