Petra Poutanen
type: MusicGroup
popularity: 13
followers: 47
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9a9a5d575c81a87badebe13999bba5d58acad318fe8e6f815fa7dc0b2d87173
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953773
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953773
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca1329b5-335a-4864-9c1e-cc889c328af1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ca1329b5-335a-4864-9c1e-cc889c328af1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ca1329b5-335a-4864-9c1e-cc889c328af1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T10:40:45Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9a9a5d575c81a87badebe13999bba5d58acad318fe8e6f815fa7dc0b2d87173","name":"Petra Poutanen","registered_at":"2026-06-15T01:42:56Z","symbol":"NIM0642595","token_address":"0x0ea7f8a8bcfdc6aa9c782d388f4917702982ffd9","type":"artist","uuid":"ca1329b5-335a-4864-9c1e-cc889c328af1"}
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 0xe9a9a5d575c81a87badebe13999bba5d58acad318fe8e6f815fa7dc0b2d87173. Chain 2 (Bitcoin): anchored in block 953777 (2026-06-15T11:52:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ca1329b5-335a-4864-9c1e-cc889c328af1.json and https://artists.proofprofile.net/proofs/artist/ca1329b5-335a-4864-9c1e-cc889c328af1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:52:51Z
  text: {"copyright_id":"0xe9a9a5d575c81a87badebe13999bba5d58acad318fe8e6f815fa7dc0b2d87173","name":"Petra Poutanen","registered_at":"2026-06-15T01:42:56Z","symbol":"NIM0642595","token_address":"0x0ea7f8a8bcfdc6aa9c782d388f4917702982ffd9","type":"artist","uuid":"ca1329b5-335a-4864-9c1e-cc889c328af1"}
album: Ikävyys
  type: MusicAlbum
  date published: 2025-04-25
album: Laulu Oravasta
  type: MusicAlbum
  date published: 2025-05-16
album: Todisteita siitä mitä olemme
  type: MusicAlbum
  date published: 2025-05-30