Pou Vannary
type: MusicGroup
description: Pou Vannary (; fl. 1970s) was a Cambodian singer active in the early 1970s. She was one of many Cambodian musicians believed to have perished during the Khmer Rouge regime starting in 1975. History L
popularity: 4
followers: 115
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9d61081b72dc2e102b1cc91c5c8479a38038f0d2c41a145317b08b3fa24229c5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b70c2540-3111-4f67-8a01-d2d040d8a7a1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b70c2540-3111-4f67-8a01-d2d040d8a7a1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b70c2540-3111-4f67-8a01-d2d040d8a7a1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9d61081b72dc2e102b1cc91c5c8479a38038f0d2c41a145317b08b3fa24229c5","name":"Pou Vannary","registered_at":"2026-06-20T15:04:11Z","symbol":"NIM1637092","token_address":"0x5653266e17e7e9fec5911ef3b4aaad65b67c3748","type":"artist","uuid":"b70c2540-3111-4f67-8a01-d2d040d8a7a1"}
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 0x9d61081b72dc2e102b1cc91c5c8479a38038f0d2c41a145317b08b3fa24229c5. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b70c2540-3111-4f67-8a01-d2d040d8a7a1.json and https://artists.proofprofile.net/proofs/artist/b70c2540-3111-4f67-8a01-d2d040d8a7a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x9d61081b72dc2e102b1cc91c5c8479a38038f0d2c41a145317b08b3fa24229c5","name":"Pou Vannary","registered_at":"2026-06-20T15:04:11Z","symbol":"NIM1637092","token_address":"0x5653266e17e7e9fec5911ef3b4aaad65b67c3748","type":"artist","uuid":"b70c2540-3111-4f67-8a01-d2d040d8a7a1"}