Alfred Jerger (9 June 1889 – 18 November 1976) was an Austrian operatic bass-baritone, who began his career as a conductor of operettas, and was also an interim director of the Vienna State Opera and
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 0x90077f4320da4cf5cc9c5b442f4a1cf53ab71e384300d172f17f9948672988a5. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1811d639-aec1-43b0-8668-8904240ea147.json and https://artists.proofprofile.net/proofs/artist/1811d639-aec1-43b0-8668-8904240ea147.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).