Haslinger is a surname. Notable people with the surname include: Josef Haslinger (born 1955), Austrian writer Paul Haslinger (born 1962), Austrian-born American composer and musician Stewart Haslinge
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 0x092c5b56959dd858e5c70d9475eea081a4400b57294412c93a4c5bf9c2ac7caa. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/70c61648-ba55-4f2b-9371-8c0a6aff2f05.json and https://artists.proofprofile.net/proofs/artist/70c61648-ba55-4f2b-9371-8c0a6aff2f05.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).