Anke Helfrich
type: MusicGroup
genre: jazz
description: Anke Helfrich (born 11 November 1966) is a German jazz pianist and composer. Life and work Helfrich grew up in Windhoek, Namibia and Weinheim, Germany where she received piano lessons. She studied in
popularity: 3
followers: 564
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93356b8676bbc89423b4637d96e0fe3c0f959be71127028a451b3e9941538662
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/655e5d5e-930b-42a1-99aa-433105680faa.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/655e5d5e-930b-42a1-99aa-433105680faa.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/655e5d5e-930b-42a1-99aa-433105680faa
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x93356b8676bbc89423b4637d96e0fe3c0f959be71127028a451b3e9941538662","name":"Anke Helfrich","registered_at":"2026-06-17T00:58:26Z","symbol":"NIM1230987","token_address":"0x3ec8603f2627b5a15cdf6b4c8185b811bb7795e0","type":"artist","uuid":"655e5d5e-930b-42a1-99aa-433105680faa"}
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 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93356b8676bbc89423b4637d96e0fe3c0f959be71127028a451b3e9941538662. 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/655e5d5e-930b-42a1-99aa-433105680faa.json and https://artists.proofprofile.net/proofs/artist/655e5d5e-930b-42a1-99aa-433105680faa.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x93356b8676bbc89423b4637d96e0fe3c0f959be71127028a451b3e9941538662","name":"Anke Helfrich","registered_at":"2026-06-17T00:58:26Z","symbol":"NIM1230987","token_address":"0x3ec8603f2627b5a15cdf6b4c8185b811bb7795e0","type":"artist","uuid":"655e5d5e-930b-42a1-99aa-433105680faa"}
album: Stormproof
  type: MusicAlbum
  date published: 2009-01-23
album: Stormproof
  type: MusicAlbum
  date published: 2009-01-23
album: Dedication
  type: MusicAlbum
  date published: 2015-11-20
album: We'll Rise
  type: MusicAlbum
  date published: 2023-10-20
album: We'll Rise
  type: MusicAlbum
  date published: 2023-11-03