Pi O
type: MusicGroup
description: П. O. (or Pi O, born 1951) is a Greek-Australian, working class, anarchist poet. Biography Born in Katerini, Greece, in 1951, П. O.'s family moved to Australia around 1955. They settled in Fitzroy af
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8d2a27f91a2df71196e97309bfb3a92af98ef9b3a1a51c74cfd7c61d8f4c5690
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954555
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954555
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad2dbd17-a80a-4261-9b8d-afc473b9feb1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad2dbd17-a80a-4261-9b8d-afc473b9feb1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad2dbd17-a80a-4261-9b8d-afc473b9feb1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T12:10:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8d2a27f91a2df71196e97309bfb3a92af98ef9b3a1a51c74cfd7c61d8f4c5690","name":"Pi O","registered_at":"2026-06-20T10:50:11Z","symbol":"NIM1595072","token_address":"0x64d7616f75c7f2dafecc1c4b07b0add3fa5985e9","type":"artist","uuid":"ad2dbd17-a80a-4261-9b8d-afc473b9feb1"}
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 0x8d2a27f91a2df71196e97309bfb3a92af98ef9b3a1a51c74cfd7c61d8f4c5690. Chain 2 (Bitcoin): anchored in block 954556 (2026-06-20T12:14:15Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad2dbd17-a80a-4261-9b8d-afc473b9feb1.json and https://artists.proofprofile.net/proofs/artist/ad2dbd17-a80a-4261-9b8d-afc473b9feb1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T12:14:15Z
  text: {"copyright_id":"0x8d2a27f91a2df71196e97309bfb3a92af98ef9b3a1a51c74cfd7c61d8f4c5690","name":"Pi O","registered_at":"2026-06-20T10:50:11Z","symbol":"NIM1595072","token_address":"0x64d7616f75c7f2dafecc1c4b07b0add3fa5985e9","type":"artist","uuid":"ad2dbd17-a80a-4261-9b8d-afc473b9feb1"}