Grey area or gray area may refer to: Music The Grey Area (Mute), a record label Grey Area (album), a 2019 album by Little Simz The Grey Area (album), a 2003 album by Onry Ozzborn "Gray Area", a s
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 0x80e7bc8d298a3ff5f7885ce8cc8fc5d5ca5b267242af81e52525ae2aea0c086a. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ab572e13-498e-42a8-9cd3-961862dc4e69.json and https://artists.proofprofile.net/proofs/artist/ab572e13-498e-42a8-9cd3-961862dc4e69.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).