Mostly Other People Do the Killing is a jazz quartet based in New York City including trumpeter Peter Evans, saxophonist Jon Irabagon, bassist Matthew "Moppa" Elliott, and drummer Kevin Shea. The gro
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 0xfcbfa3498e6aca3868fce5929c14276743874356daedb35198ac8d70dda0b207. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/506cf37d-ca8e-4141-9d87-7855c3236d3a.json and https://artists.proofprofile.net/proofs/artist/506cf37d-ca8e-4141-9d87-7855c3236d3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).