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 0xe493f2923d51e4001f012cf7fba0bddf0adb2d754207141b4a5dd1d010a04fd8. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/422c0099-e316-45d6-87b6-1e407bd3d269.json and https://artists.proofprofile.net/proofs/artist/422c0099-e316-45d6-87b6-1e407bd3d269.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Shabad Kirtan : Prof. Darshan Singh Ragi Vol. 1 & 2