Litterer is a surname. Notable people with the surname include: Joseph A. Litterer (1926–1995), American organizational theorist and professor William Litterer (1834–1917), American politician Steve,
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 0x6bbb9189b34c3a767f2da7cd55767018a663e2f5bb5b7b40103d13474d1a571c. Chain 2 (Bitcoin): anchored in block 954002 (2026-06-16T20:47:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/31a885ff-e894-4d17-ab05-48579f095234.json and https://artists.proofprofile.net/proofs/artist/31a885ff-e894-4d17-ab05-48579f095234.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.