Just Jasco
type: MusicGroup
popularity: 3
followers: 54
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa38613c528ef53165be7e5dd3f3050cac7f29fcc511a1652e1d2940158b28e68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7d2b7e0-348a-43e3-b7ac-4977a928b541.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f7d2b7e0-348a-43e3-b7ac-4977a928b541.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f7d2b7e0-348a-43e3-b7ac-4977a928b541
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa38613c528ef53165be7e5dd3f3050cac7f29fcc511a1652e1d2940158b28e68","name":"Just Jasco","registered_at":"2026-06-21T16:05:03Z","symbol":"NIM1964442","token_address":"0x6db5fc99e27f9a5e81a09f749063416774e609d1","type":"artist","uuid":"f7d2b7e0-348a-43e3-b7ac-4977a928b541"}
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 0xa38613c528ef53165be7e5dd3f3050cac7f29fcc511a1652e1d2940158b28e68. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f7d2b7e0-348a-43e3-b7ac-4977a928b541.json and https://artists.proofprofile.net/proofs/artist/f7d2b7e0-348a-43e3-b7ac-4977a928b541.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0xa38613c528ef53165be7e5dd3f3050cac7f29fcc511a1652e1d2940158b28e68","name":"Just Jasco","registered_at":"2026-06-21T16:05:03Z","symbol":"NIM1964442","token_address":"0x6db5fc99e27f9a5e81a09f749063416774e609d1","type":"artist","uuid":"f7d2b7e0-348a-43e3-b7ac-4977a928b541"}
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  type: MusicAlbum
  date published: 2023-08-09
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  type: MusicAlbum
  date published: 2024-01-01
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  type: MusicAlbum
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