"Poison Heart" is a song by the punk rock band Ramones. Written by their former bassist Dee Dee Ramone and given in exchange for bail money, it was included on the 1992 album Mondo Bizarro and also re
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x166f3f0f4bc19d09d39fcd95d752974aa2fb0739d7099aa6de1d126e2444bc67. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b30b210f-d77d-45b4-a8f5-f533abf66a64.json and https://artists.proofprofile.net/proofs/artist/b30b210f-d77d-45b4-a8f5-f533abf66a64.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).