Pääkköset
type: MusicGroup
genre: finnish hip hop
genre: finnish pop
genre: finnish rock
popularity: 3
followers: 396
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6ddf9a7d7c66f153c3a478f1364c3d4edbf16e96a5fbf86abb4eba5277c2729f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953939
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953939
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/200f0d55-7e66-4b6b-a582-581a8f0c3221.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/200f0d55-7e66-4b6b-a582-581a8f0c3221.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/200f0d55-7e66-4b6b-a582-581a8f0c3221
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T11:40:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6ddf9a7d7c66f153c3a478f1364c3d4edbf16e96a5fbf86abb4eba5277c2729f","name":"Pääkköset","registered_at":"2026-06-16T01:00:34Z","symbol":"NIM0887825","token_address":"0xe4368cffc4b6f60405fba0ed8e8c532651606a0e","type":"artist","uuid":"200f0d55-7e66-4b6b-a582-581a8f0c3221"}
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 0x6ddf9a7d7c66f153c3a478f1364c3d4edbf16e96a5fbf86abb4eba5277c2729f. Chain 2 (Bitcoin): anchored in block 953939 (2026-06-16T11:40:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/200f0d55-7e66-4b6b-a582-581a8f0c3221.json and https://artists.proofprofile.net/proofs/artist/200f0d55-7e66-4b6b-a582-581a8f0c3221.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T11:40:13Z
  text: {"copyright_id":"0x6ddf9a7d7c66f153c3a478f1364c3d4edbf16e96a5fbf86abb4eba5277c2729f","name":"Pääkköset","registered_at":"2026-06-16T01:00:34Z","symbol":"NIM0887825","token_address":"0xe4368cffc4b6f60405fba0ed8e8c532651606a0e","type":"artist","uuid":"200f0d55-7e66-4b6b-a582-581a8f0c3221"}
album: Pääkköset
  type: MusicAlbum
  date published: 1989-12-30