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 0x993786d31eefc8d8bf8d7c7558c3273a8e4dd32bb1c5561005171b38f9761392. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acb8a5fe-e48b-4729-b57f-7e415edb11a9.json and https://artists.proofprofile.net/proofs/artist/acb8a5fe-e48b-4729-b57f-7e415edb11a9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Speak Love (feat. Gabriel Chakarji, Alon Near & Noam Israeli)