Truant Fu
type: MusicGroup
genre: vietnam indie
genre: v-pop
popularity: 20
followers: 2812
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc4a9eee5667b951cabe0911e86befb48fbcf9fedc08cba655fced1d3fa8fa6d2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/475e9ee2-43ec-4d20-8d93-9e4c5c2e360f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/475e9ee2-43ec-4d20-8d93-9e4c5c2e360f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/475e9ee2-43ec-4d20-8d93-9e4c5c2e360f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc4a9eee5667b951cabe0911e86befb48fbcf9fedc08cba655fced1d3fa8fa6d2","name":"Truant Fu","registered_at":"2026-06-14T11:57:43Z","symbol":"NIM0445685","token_address":"0x6ebfc91864bfc810c75c7064231ddcfea6d64d0e","type":"artist","uuid":"475e9ee2-43ec-4d20-8d93-9e4c5c2e360f"}
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 0xc4a9eee5667b951cabe0911e86befb48fbcf9fedc08cba655fced1d3fa8fa6d2. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/475e9ee2-43ec-4d20-8d93-9e4c5c2e360f.json and https://artists.proofprofile.net/proofs/artist/475e9ee2-43ec-4d20-8d93-9e4c5c2e360f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xc4a9eee5667b951cabe0911e86befb48fbcf9fedc08cba655fced1d3fa8fa6d2","name":"Truant Fu","registered_at":"2026-06-14T11:57:43Z","symbol":"NIM0445685","token_address":"0x6ebfc91864bfc810c75c7064231ddcfea6d64d0e","type":"artist","uuid":"475e9ee2-43ec-4d20-8d93-9e4c5c2e360f"}
album: RUNAWAY
  type: MusicAlbum
  date published: 2023-07-02
album: RUNAWAY
  type: MusicAlbum
  date published: 2023-07-02
album: Rối Ren
  type: MusicAlbum
  date published: 2023-12-11
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  type: MusicAlbum
  date published: 2023-12-11
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  type: MusicAlbum
  date published: 2024-04-15
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  type: MusicAlbum
  date published: 2024-04-15
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2025-10-29