Nathaniel Joseph Ruess (pronounced ; born February 26, 1982) is an American singer and songwriter. He formed the indie rock band The Format in 2002, and later went on to form the band fun. in 2008.
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 0x0dd76f19d4486c0dedfcab2747089deb23e4e811002c9d6d19b8501ec10fcb59. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b986b53c-9042-46da-84b8-2662a0d507d6.json and https://artists.proofprofile.net/proofs/artist/b986b53c-9042-46da-84b8-2662a0d507d6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).