嚴堡丹
type: MusicGroup
genre: gufeng
popularity: 3
followers: 117
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8c2bedfe1451f74b8ecf64f4a6ae7eb062e1ca1aa17bb0af4450adbed7b4460
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed90bd52-09fa-47d2-b397-9cf4b7cf4d60.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ed90bd52-09fa-47d2-b397-9cf4b7cf4d60.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ed90bd52-09fa-47d2-b397-9cf4b7cf4d60
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8c2bedfe1451f74b8ecf64f4a6ae7eb062e1ca1aa17bb0af4450adbed7b4460","name":"嚴堡丹","registered_at":"2026-06-21T11:42:04Z","symbol":"NIM1914660","token_address":"0x6b733bd20d2311a5de2593d0b846ca28ebb7d95c","type":"artist","uuid":"ed90bd52-09fa-47d2-b397-9cf4b7cf4d60"}
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 0xb8c2bedfe1451f74b8ecf64f4a6ae7eb062e1ca1aa17bb0af4450adbed7b4460. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ed90bd52-09fa-47d2-b397-9cf4b7cf4d60.json and https://artists.proofprofile.net/proofs/artist/ed90bd52-09fa-47d2-b397-9cf4b7cf4d60.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0xb8c2bedfe1451f74b8ecf64f4a6ae7eb062e1ca1aa17bb0af4450adbed7b4460","name":"嚴堡丹","registered_at":"2026-06-21T11:42:04Z","symbol":"NIM1914660","token_address":"0x6b733bd20d2311a5de2593d0b846ca28ebb7d95c","type":"artist","uuid":"ed90bd52-09fa-47d2-b397-9cf4b7cf4d60"}
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  type: MusicAlbum
  date published: 2019-03-15
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