Brady Grey (born 20 July 1995) is an Australian rules footballer who played for the Fremantle Football Club in the Australian Football League (AFL). Drafted with the 58th selection in the 2013 AFL dr
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 0xcf44debfb2a372606780da57fb1e65a9af4921e3d8876dca7fc302f004c672de. Chain 2 (Bitcoin): anchored in block 954043 (2026-06-17T04:15:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3fb09aaa-a173-49db-9abd-be911cd73ff6.json and https://artists.proofprofile.net/proofs/artist/3fb09aaa-a173-49db-9abd-be911cd73ff6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).