Original Härtsfelder Musikanten
type: MusicGroup
genre: polka
popularity: 11
followers: 152
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd988012b21e759174f5832ecd68b3471d9d1c9610f6d26677325a59a7d336459
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe5526bd-38dd-4a3b-bbce-6791ac72ca46.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fe5526bd-38dd-4a3b-bbce-6791ac72ca46.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fe5526bd-38dd-4a3b-bbce-6791ac72ca46
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd988012b21e759174f5832ecd68b3471d9d1c9610f6d26677325a59a7d336459","name":"Original Härtsfelder Musikanten","registered_at":"2026-06-15T07:13:34Z","symbol":"NIM0721518","token_address":"0x25b8c82e7fb69f3baf055b5053d686aa65c59158","type":"artist","uuid":"fe5526bd-38dd-4a3b-bbce-6791ac72ca46"}
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 0xd988012b21e759174f5832ecd68b3471d9d1c9610f6d26677325a59a7d336459. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fe5526bd-38dd-4a3b-bbce-6791ac72ca46.json and https://artists.proofprofile.net/proofs/artist/fe5526bd-38dd-4a3b-bbce-6791ac72ca46.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0xd988012b21e759174f5832ecd68b3471d9d1c9610f6d26677325a59a7d336459","name":"Original Härtsfelder Musikanten","registered_at":"2026-06-15T07:13:34Z","symbol":"NIM0721518","token_address":"0x25b8c82e7fb69f3baf055b5053d686aa65c59158","type":"artist","uuid":"fe5526bd-38dd-4a3b-bbce-6791ac72ca46"}
album: Härtsfelder Sterne
  type: MusicAlbum
  date published: 2017-10-28
album: Wir leben Blasmusik
  type: MusicAlbum
  date published: 2022-05-19