1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0x13a096db5926ef2ec51cf27ea2f3efd6de5635bcfe4bc80b2b5eee628838ca62. 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/a6435b14-157d-4c5d-a23b-b1cb3b763dd3.json and https://artists.proofprofile.net/proofs/artist/a6435b14-157d-4c5d-a23b-b1cb3b763dd3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
RUN Digital Millenium Copyright Act X: Thutmose Tha Gully.Exe
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