David Grimes may refer to: David Grimes (American football) (born 1986), American football wide receiver David Grimes (composer) (born 1948), American composer David Grimes (physician) (born 1947), Am
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd26fb7adeb3748323d2ace601fc1fd9828867ae24454c29649b8caaedca45c6d. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49f7a302-4c37-45cd-b654-dba6e19d11a7.json and https://artists.proofprofile.net/proofs/artist/49f7a302-4c37-45cd-b654-dba6e19d11a7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).