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 0x5ae1ce63f919e3eb2c0306a6da3f75be54b7ae2b569c8c559f56758ef01539d8. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b7dde6c4-1e6d-4b0b-b44a-29f41b3b38c3.json and https://artists.proofprofile.net/proofs/artist/b7dde6c4-1e6d-4b0b-b44a-29f41b3b38c3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Mane Jogniya Le Jalo Mara Kesriya Bhartar