Polarfunk
type: MusicGroup
genre: melodic techno
popularity: 2
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8c6d7626d8ae7ee76e5e14b5addcb9c597397e85a33c81f7f79e5a6dcc96a316
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e40055e7-b677-47cb-b505-4c2815a1f100.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e40055e7-b677-47cb-b505-4c2815a1f100.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e40055e7-b677-47cb-b505-4c2815a1f100
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
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 0x8c6d7626d8ae7ee76e5e14b5addcb9c597397e85a33c81f7f79e5a6dcc96a316. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e40055e7-b677-47cb-b505-4c2815a1f100.json and https://artists.proofprofile.net/proofs/artist/e40055e7-b677-47cb-b505-4c2815a1f100.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
album: Nacht und Nebel
  type: MusicAlbum
  date published: 2021-01-15
album: Rising
  type: MusicAlbum
  date published: 2021-04-02
album: Rising
  type: MusicAlbum
  date published: 2021-04-02
album: Tribe
  type: MusicAlbum
  date published: 2022-04-01
album: Tribe (Extended Mix)
  type: MusicAlbum
  date published: 2022-04-01
album: Ferdinand
  type: MusicAlbum
  date published: 2024-07-05
album: Supernova
  type: MusicAlbum
  date published: 2024-11-08