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 0x8a52016e83a0c1ad0112f9f0c1ad5823af9b78d22aa42dd59dc885e0f3d7b762. 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/6c49397c-9dae-4c4f-9da7-35c7de320a96.json and https://artists.proofprofile.net/proofs/artist/6c49397c-9dae-4c4f-9da7-35c7de320a96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Leaving You (feat. John Lankford) [Fallsteeze Remix]