thumb Renatus Heinrich Deltgen (30 April 1909 in Esch-sur-Alzette, Luxembourg – 29 January 1979 in Cologne, West Germany) was a Luxembourgish stage and film actor, who spent most of his career in Germ
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 0xf99d312943716ed7feca9b376599f7623cbd54bf7a738ae2d4a4deb72e881346. Chain 2 (Bitcoin): anchored in block 953687 (2026-06-14T20:19:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/685e4ff8-cdd4-40a9-bdaf-84fd1f679f8a.json and https://artists.proofprofile.net/proofs/artist/685e4ff8-cdd4-40a9-bdaf-84fd1f679f8a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).