Dying Breed may refer to: Dying Breed (film), a 2008 Australian horror film "Dying Breed" (The Killers song), 2020 "Dying Breed", a song by Five Finger Death Punch from the album War Is the Answer
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 0x7fd803e1394cfe51e3a258369b3c78a11b62c465154bef60ba9fde843bcda4e0. Chain 2 (Bitcoin): anchored in block 953896 (2026-06-16T06:05:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/10c9a0a9-81b3-4d3a-81d0-eb56b315505d.json and https://artists.proofprofile.net/proofs/artist/10c9a0a9-81b3-4d3a-81d0-eb56b315505d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).