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 0x77cf23edec49e7aff28168dd3d3dad03da98a2453bdf9bab6fefad8990f7c197. 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/df0abdd6-5613-4638-8906-a766e28c6034.json and https://artists.proofprofile.net/proofs/artist/df0abdd6-5613-4638-8906-a766e28c6034.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Eutopia / EMOTION / stars we chase (鐘 嵐珠盤)
Eutopia / EMOTION / stars we chase【ミア・テイラー盤】
Eutopia / EMOTION / stars we chase (ミア・テイラー盤)
Eutopia / EMOTION / stars we chase【鐘 嵐珠盤】
Eutopia / EMOTION / stars we chase (三船栞子盤)
Eutopia / EMOTION / stars we chase【三船栞子盤】