The Jerks is a rock band from the Philippines formed in 1979, and perhaps, is the original alternative rock and blues band in the country. The band has undergone a lot of member changes and notably a
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 0x5866df2c1e1f871eb2a15d46f12f7eb066a9c49259468e7e71f5ccdcf8373e2c. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ad69a0b-738f-433e-97e8-55f38978beff.json and https://artists.proofprofile.net/proofs/artist/9ad69a0b-738f-433e-97e8-55f38978beff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).