Alfred Jerger
type: MusicGroup
genre: opera
description: 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
popularity: 2
followers: 272
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x90077f4320da4cf5cc9c5b442f4a1cf53ab71e384300d172f17f9948672988a5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1811d639-aec1-43b0-8668-8904240ea147.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1811d639-aec1-43b0-8668-8904240ea147.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1811d639-aec1-43b0-8668-8904240ea147
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x90077f4320da4cf5cc9c5b442f4a1cf53ab71e384300d172f17f9948672988a5","name":"Alfred Jerger","registered_at":"2026-06-15T22:00:04Z","symbol":"NIM0844741","token_address":"0xd4f169fb17742d57f0c5791db59a92f322a3b42b","type":"artist","uuid":"1811d639-aec1-43b0-8668-8904240ea147"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x90077f4320da4cf5cc9c5b442f4a1cf53ab71e384300d172f17f9948672988a5","name":"Alfred Jerger","registered_at":"2026-06-15T22:00:04Z","symbol":"NIM0844741","token_address":"0xd4f169fb17742d57f0c5791db59a92f322a3b42b","type":"artist","uuid":"1811d639-aec1-43b0-8668-8904240ea147"}