Pekka Tuppurainen
type: MusicGroup
genre: avant-garde
genre: free jazz
genre: minimal techno
genre: nu jazz
popularity: 2
followers: 109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x371edf9ceae2307fce218f301dfa2a48311361300ffad12862001b4561aaa15e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be1c59a7-1864-4576-9669-247f3f746c74.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/be1c59a7-1864-4576-9669-247f3f746c74.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/be1c59a7-1864-4576-9669-247f3f746c74
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x371edf9ceae2307fce218f301dfa2a48311361300ffad12862001b4561aaa15e","name":"Pekka Tuppurainen","registered_at":"2026-06-20T18:36:54Z","symbol":"NIM1680418","token_address":"0xec5b480f2a6ced16c4dca5f3af06b4d9ef3c0f07","type":"artist","uuid":"be1c59a7-1864-4576-9669-247f3f746c74"}
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 0x371edf9ceae2307fce218f301dfa2a48311361300ffad12862001b4561aaa15e. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be1c59a7-1864-4576-9669-247f3f746c74.json and https://artists.proofprofile.net/proofs/artist/be1c59a7-1864-4576-9669-247f3f746c74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x371edf9ceae2307fce218f301dfa2a48311361300ffad12862001b4561aaa15e","name":"Pekka Tuppurainen","registered_at":"2026-06-20T18:36:54Z","symbol":"NIM1680418","token_address":"0xec5b480f2a6ced16c4dca5f3af06b4d9ef3c0f07","type":"artist","uuid":"be1c59a7-1864-4576-9669-247f3f746c74"}
album: Röd / Blå
  type: MusicAlbum
  date published: 2010-07-03
album: Röd / Blå
  type: MusicAlbum
  date published: 2010-07-19
album: Rod / Bla
  type: MusicAlbum
  date published: 2013-04-01