群咲
type: MusicGroup
genre: japanese indie
popularity: 3
followers: 803
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9b8e4abc8467f6a9ba4a941678709b45deb223968549f0e81e9e17f330b85cc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79d6a4be-1b0e-4709-b1b7-eae7423328e4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79d6a4be-1b0e-4709-b1b7-eae7423328e4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/79d6a4be-1b0e-4709-b1b7-eae7423328e4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9b8e4abc8467f6a9ba4a941678709b45deb223968549f0e81e9e17f330b85cc2","name":"群咲","registered_at":"2026-06-17T08:03:59Z","symbol":"NIM1332515","token_address":"0x4770ff01ebc7a542ed94df87e95b95b474d701e6","type":"artist","uuid":"79d6a4be-1b0e-4709-b1b7-eae7423328e4"}
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 0x9b8e4abc8467f6a9ba4a941678709b45deb223968549f0e81e9e17f330b85cc2. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79d6a4be-1b0e-4709-b1b7-eae7423328e4.json and https://artists.proofprofile.net/proofs/artist/79d6a4be-1b0e-4709-b1b7-eae7423328e4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x9b8e4abc8467f6a9ba4a941678709b45deb223968549f0e81e9e17f330b85cc2","name":"群咲","registered_at":"2026-06-17T08:03:59Z","symbol":"NIM1332515","token_address":"0x4770ff01ebc7a542ed94df87e95b95b474d701e6","type":"artist","uuid":"79d6a4be-1b0e-4709-b1b7-eae7423328e4"}
album: 深海に漂う
  type: MusicAlbum
  date published: 2020-10-08
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  type: MusicAlbum
  date published: 2022-01-31
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  type: MusicAlbum
  date published: 2023-02-15
album: 模造生活
  type: MusicAlbum
  date published: 2023-02-15
album: 他問他答
  type: MusicAlbum
  date published: 2023-12-29
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  type: MusicAlbum
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  type: MusicAlbum
  date published: 2024-08-26