Pi Seven
type: MusicGroup
genre: vinahouse
popularity: 15
followers: 617
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2f4229a1da1dc2fcb9dd86e55956da9404db3382278e9d2b2fbc0c192ed45a5b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75cc564d-1389-4434-9997-dbfe2cbaa74a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/75cc564d-1389-4434-9997-dbfe2cbaa74a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/75cc564d-1389-4434-9997-dbfe2cbaa74a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:47:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2f4229a1da1dc2fcb9dd86e55956da9404db3382278e9d2b2fbc0c192ed45a5b","name":"Pi Seven","registered_at":"2026-06-14T16:47:58Z","symbol":"NIM0514949","token_address":"0xdcdc35986913c5bb037c2d86b1e84173296370b6","type":"artist","uuid":"75cc564d-1389-4434-9997-dbfe2cbaa74a"}
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 0x2f4229a1da1dc2fcb9dd86e55956da9404db3382278e9d2b2fbc0c192ed45a5b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/75cc564d-1389-4434-9997-dbfe2cbaa74a.json and https://artists.proofprofile.net/proofs/artist/75cc564d-1389-4434-9997-dbfe2cbaa74a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:47:56Z
  text: {"copyright_id":"0x2f4229a1da1dc2fcb9dd86e55956da9404db3382278e9d2b2fbc0c192ed45a5b","name":"Pi Seven","registered_at":"2026-06-14T16:47:58Z","symbol":"NIM0514949","token_address":"0xdcdc35986913c5bb037c2d86b1e84173296370b6","type":"artist","uuid":"75cc564d-1389-4434-9997-dbfe2cbaa74a"}
album: Việt Nam Airline - Pi7 (Original Mix)
  type: MusicAlbum
  date published: 2022-06-24
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  type: MusicAlbum
  date published: 2022-08-06
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  type: MusicAlbum
  date published: 2022-08-18
album: Money Lisa
  type: MusicAlbum
  date published: 2022-09-14