Bob B Boilen (born April 10, 1953, in Brooklyn, New York City) is an American musician and media personality. He was the host and creator of NPR's online music show All Songs Considered and the co-cre
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 0x85d82433d867681d3f5121819697e8a78c9d774c70536b37005b4145d700bce5. 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/5e1a08ac-30ec-478c-8f88-acc3106801ad.json and https://artists.proofprofile.net/proofs/artist/5e1a08ac-30ec-478c-8f88-acc3106801ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).