Dagmar Koller (born 26 August 1939) is an Austrian actress and singer. Life Born in Klagenfurt, she is recognized as the leading German language musical singer. She married Austrian journalist and po
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb6cb6d7930ff1cfd0aa6a56188cba4459d5a4731b3f3f627fcd3c38e511ffcc0. Chain 2 (Bitcoin): anchored in block 954008 (2026-06-16T21:31:27Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/33c357cd-36a0-439c-8b90-d079fa424167.json and https://artists.proofprofile.net/proofs/artist/33c357cd-36a0-439c-8b90-d079fa424167.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).