Trapp is a surname. Notable people with the surname include: A. A. Trapp (1918–2007), Canadian politician from Manitoba Albert Trapp (died 1953), Canadian politician from Manitoba George Trapp (ed
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 0x9b360697e67599ad7903962e22d493b334843430c3321245bcc360cace91368d. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0ac11a44-9b6d-48fc-b734-1c7952be97c4.json and https://artists.proofprofile.net/proofs/artist/0ac11a44-9b6d-48fc-b734-1c7952be97c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).