Grace may refer to: Places United States Grace, Idaho, a city Grace (CTA station), Chicago Transit Authority's Howard Line, Illinois Little Goose Creek (Kentucky), location of Grace post office
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 0x6794272666b1d50a6be3f675ad72dbc0799710b9015f70c59058f08d234503cb. Chain 2 (Bitcoin): anchored in block 953654 (2026-06-14T16:26:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4a6b7b9f-f3a1-4473-9e89-38f76274f65f.json and https://artists.proofprofile.net/proofs/artist/4a6b7b9f-f3a1-4473-9e89-38f76274f65f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).