Looper Appears
type: MusicGroup
genre: v-pop
popularity: 12
followers: 72
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5095b13236d7932f6db7047b9a8ecfa14e2b744e421dbfae9aeebcc0bb402d28
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953733
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953733
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/977eab2e-8aff-456b-8922-0f884f595cf0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/977eab2e-8aff-456b-8922-0f884f595cf0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/977eab2e-8aff-456b-8922-0f884f595cf0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T03:12:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5095b13236d7932f6db7047b9a8ecfa14e2b744e421dbfae9aeebcc0bb402d28","name":"Looper Appears","registered_at":"2026-06-14T20:24:14Z","symbol":"NIM0566489","token_address":"0x299124a6ec251374881556910552521f20664126","type":"artist","uuid":"977eab2e-8aff-456b-8922-0f884f595cf0"}
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 0x5095b13236d7932f6db7047b9a8ecfa14e2b744e421dbfae9aeebcc0bb402d28. Chain 2 (Bitcoin): anchored in block 953733 (2026-06-15T03:12:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/977eab2e-8aff-456b-8922-0f884f595cf0.json and https://artists.proofprofile.net/proofs/artist/977eab2e-8aff-456b-8922-0f884f595cf0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T03:12:39Z
  text: {"copyright_id":"0x5095b13236d7932f6db7047b9a8ecfa14e2b744e421dbfae9aeebcc0bb402d28","name":"Looper Appears","registered_at":"2026-06-14T20:24:14Z","symbol":"NIM0566489","token_address":"0x299124a6ec251374881556910552521f20664126","type":"artist","uuid":"977eab2e-8aff-456b-8922-0f884f595cf0"}
album: Nụ Cười Sau Chia Tay
  type: MusicAlbum
  date published: 2023-09-15
album: Viết Cho Những Ngày Xanh
  type: MusicAlbum
  date published: 2025-01-20
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  type: MusicAlbum
  date published: 2025-05-22
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  type: MusicAlbum
  date published: 2025-06-21