Avail is an American melodic hardcore band from Richmond, Virginia. Originally from Reston, Virginia, the band formed in 1987, its members including Joe Banks, Doug Crosby, Brien Stewart, and Mikey Wa
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 0x8922b607a81ebee6931eefa3fa5893f2e9fe055ed0bf8a3d43a2f49c1c5aaf6c. Chain 2 (Bitcoin): anchored in block 953768 (2026-06-15T09:30:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c2078c89-0226-4ee0-9a30-2a7780786b2a.json and https://artists.proofprofile.net/proofs/artist/c2078c89-0226-4ee0-9a30-2a7780786b2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).