The Graph is an open-source, decentralized protocol that powers the indexing and querying of blockchain data. It enables developers to build scalable web3 decentralized applications without managing c
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 0x49206b7c8e2c3126b04925882f3a9a67c333491a3d791ea769dd3bc74f056464. Chain 2 (Bitcoin): anchored in block 953626 (2026-06-14T11:41:45Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1f7f5fc8-7f07-43bf-af20-a63013ab7845.json and https://artists.proofprofile.net/proofs/artist/1f7f5fc8-7f07-43bf-af20-a63013ab7845.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).