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 0x65686628b85f9bc6fb0e8d7979398a84730db5dfc860677ffc10aa608a47306c. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71c28d3f-4fda-4670-8a8d-3d4ae151b898.json and https://artists.proofprofile.net/proofs/artist/71c28d3f-4fda-4670-8a8d-3d4ae151b898.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
囁き声で単語繰り返し①(オノマトペ)
囁き声で単語繰り返し②(オノマトペ)
Sasayakigoe De Tango Kurikaeshi ① (Onomatopoeia)
Sasayakigoe De Tango Kurikaeshi ② (Onomatopoeia)