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 0x8adc233581e0b9c300081d68f5aa079fb48d720a8c567ef830ebf7a89c9d6d27. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/01a55ed5-8421-4e6d-98dc-e121f9425a0c.json and https://artists.proofprofile.net/proofs/artist/01a55ed5-8421-4e6d-98dc-e121f9425a0c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Winterbeats (2020 Anthem) [John Loder & Lntx Remix]