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 0xd880046062e9442a80b3688a7ad87743f812cb0d9ca9b2fc6c2b875abe97e8ad. 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/87c30ab7-5eac-45ff-83ab-915d9a1c5690.json and https://artists.proofprofile.net/proofs/artist/87c30ab7-5eac-45ff-83ab-915d9a1c5690.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
君と約束した優しいあの場所まで
Delight Sweet Life ～Singing individual p
胸いっぱいのこの愛を 誰より君に / Mune Itpaino Kono Aiwo Dareyori Kimini
胸いっぱいのこの愛を 誰より君に
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