John "JoJo" Hermann (born July 18, 1962) is an American singer, musician and songwriter, best known for his involvement in the band Widespread Panic. Early life He was born in New York City and atten
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 0x37c6adcd0a575f523012ff08d4cc482f8219b067b8f0bcd84682878867dae1b3. 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/10a5fb8c-d224-4662-86f3-2731f15de9ac.json and https://artists.proofprofile.net/proofs/artist/10a5fb8c-d224-4662-86f3-2731f15de9ac.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).