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 0x923fec48e73cdace729775cc3d8d4e7d9ced0cef7a104d18703b1fb57ae2605a. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ab59608-560e-4586-85a1-2715c9e9cdd2.json and https://artists.proofprofile.net/proofs/artist/9ab59608-560e-4586-85a1-2715c9e9cdd2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
February Session Live At Mayo Street Arts
LIVE FROM PHILLY (Cart Music Live Session)