Hans Heinrich may refer to: Hans Reimann (writer) (1889–1969), pseudonym Hans Heinrich, German writer Hans Heinrich (director) (1911–2003), German film director Hans Heinrich XV (1861–1938), Silesian
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 0x580a59e3e835e95a0fdb6dc6ed72c54525fcd5e48f8c253b6ddbe7200c0260a1. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/237fedaf-5c9d-41e6-b377-32bca37f716f.json and https://artists.proofprofile.net/proofs/artist/237fedaf-5c9d-41e6-b377-32bca37f716f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).