Without Mercy may refer to: Without Mercy (film), American silent melodrama directed in 1925 by George Melford Without Mercy (album), 1984 release by English band The Durutti Column Without Mercy (Om
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 0x7fd12d566a07b85ba82b47dd5f45a040980bf019480ab4b25335c67dc9bb9167. Chain 2 (Bitcoin): anchored in block 954555 (2026-06-20T12:10:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/afd61897-1d01-4f97-b7ca-3bb462ee39dd.json and https://artists.proofprofile.net/proofs/artist/afd61897-1d01-4f97-b7ca-3bb462ee39dd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).