Die Sauerkrauts
type: MusicGroup
genre: polka
popularity: 2
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x829b3377c755eb1ca99e3a2c8009ccb5866384a0206475a0f3f354fa14518e59
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90a6dc96-a2d3-45c8-b1b7-43f2dccc77f2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/90a6dc96-a2d3-45c8-b1b7-43f2dccc77f2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/90a6dc96-a2d3-45c8-b1b7-43f2dccc77f2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x829b3377c755eb1ca99e3a2c8009ccb5866384a0206475a0f3f354fa14518e59","name":"Die Sauerkrauts","registered_at":"2026-06-17T16:05:04Z","symbol":"NIM1447202","token_address":"0xa55e68633db25ea6a2eb4ca5cce1d95303576dea","type":"artist","uuid":"90a6dc96-a2d3-45c8-b1b7-43f2dccc77f2"}
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 0x829b3377c755eb1ca99e3a2c8009ccb5866384a0206475a0f3f354fa14518e59. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/90a6dc96-a2d3-45c8-b1b7-43f2dccc77f2.json and https://artists.proofprofile.net/proofs/artist/90a6dc96-a2d3-45c8-b1b7-43f2dccc77f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x829b3377c755eb1ca99e3a2c8009ccb5866384a0206475a0f3f354fa14518e59","name":"Die Sauerkrauts","registered_at":"2026-06-17T16:05:04Z","symbol":"NIM1447202","token_address":"0xa55e68633db25ea6a2eb4ca5cce1d95303576dea","type":"artist","uuid":"90a6dc96-a2d3-45c8-b1b7-43f2dccc77f2"}
album: Star Wars Polka
  type: MusicAlbum
  date published: 2019-12-19
album: Ole Ole Polka
  type: MusicAlbum
  date published: 2022-11-19
album: Polka Party Mix, Vol. 1
  type: MusicAlbum
  date published: 2023-01-31
album: Now That's What I Call Polka!
  type: MusicAlbum
  date published: 2024-04-26
album: Istanbul, Not Constantinople
  type: MusicAlbum
  date published: 2024-09-28