Unknown Artist
type: MusicGroup
popularity: 23
followers: 1680
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ec0b2886214ebcb34b6084119f15d96f0bc388ca11cd5ce99fc7bee61371128
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3bbd779-06ef-44f8-a014-8711692e1dd1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3bbd779-06ef-44f8-a014-8711692e1dd1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b3bbd779-06ef-44f8-a014-8711692e1dd1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ec0b2886214ebcb34b6084119f15d96f0bc388ca11cd5ce99fc7bee61371128","name":"Unknown Artist","registered_at":"2026-06-12T07:43:46Z","symbol":"NIM0231847","token_address":"0x4ab57912996e4e9a03a5cbaf8d4ac37dd2a9d51b","type":"artist","uuid":"b3bbd779-06ef-44f8-a014-8711692e1dd1"}
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 0x9ec0b2886214ebcb34b6084119f15d96f0bc388ca11cd5ce99fc7bee61371128. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3bbd779-06ef-44f8-a014-8711692e1dd1.json and https://artists.proofprofile.net/proofs/artist/b3bbd779-06ef-44f8-a014-8711692e1dd1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x9ec0b2886214ebcb34b6084119f15d96f0bc388ca11cd5ce99fc7bee61371128","name":"Unknown Artist","registered_at":"2026-06-12T07:43:46Z","symbol":"NIM0231847","token_address":"0x4ab57912996e4e9a03a5cbaf8d4ac37dd2a9d51b","type":"artist","uuid":"b3bbd779-06ef-44f8-a014-8711692e1dd1"}
album: Dang Tian Xia Zhi
  type: MusicAlbum
  date published: 1930-01-01
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  type: MusicAlbum
  date published: 2008-05-23
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  type: MusicAlbum
  date published: 2018
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  date published: 2018-06-01
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  type: MusicAlbum
  date published: 2018-06-25
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  type: MusicAlbum
  date published: 2020-04-24
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  type: MusicAlbum
  date published: 2020-05-20
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  type: MusicAlbum
  date published: 2020-06-19
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  type: MusicAlbum
  date published: 2021-10-20
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  type: MusicAlbum
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