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 artist was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf58ad8355643c25278f01d60d270a18ccb08dc8ebffa7fc4877a7acf388cbcf3. 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/4de0afb5-be8f-4634-9716-bbc3e656c977.json and https://artists.proofprofile.net/proofs/artist/4de0afb5-be8f-4634-9716-bbc3e656c977.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Boyfriend -partⅡ-／原題：What Makes Me Fall In Love
ベートーヴェン：交響曲第7番イ長調作品92より 第4楽章
Sunny Day Sunday / サイクリングビート 330 BESTタッグ