Members Only or Members only may refer to: Businesses and organizations Members Only (fashion brand) Members only club Members-only unionism Music Performers Members Only (band), an American jazz-fu
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 0x301b079d007dd64b7e18fd9f52e003cf75b39e0d25150f92cf3e2a69beca17a0. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac028ae1-ab95-409b-8d07-1c2038a8f461.json and https://artists.proofprofile.net/proofs/artist/ac028ae1-ab95-409b-8d07-1c2038a8f461.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).