Dan Lang
type: MusicGroup
popularity: 2
followers: 75
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x436458cdf21e76a984b5c4e69a6025511409da9eaa8dfd726732bf97ec956d85
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953955
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953955
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/262f3421-0790-4ced-b589-e6b3b987fde4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/262f3421-0790-4ced-b589-e6b3b987fde4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/262f3421-0790-4ced-b589-e6b3b987fde4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T14:29:53Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x436458cdf21e76a984b5c4e69a6025511409da9eaa8dfd726732bf97ec956d85","name":"Dan Lang","registered_at":"2026-06-16T02:55:39Z","symbol":"NIM0915325","token_address":"0x3456821e03dcaa67b583d606bc0190af54c7af7d","type":"artist","uuid":"262f3421-0790-4ced-b589-e6b3b987fde4"}
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 0x436458cdf21e76a984b5c4e69a6025511409da9eaa8dfd726732bf97ec956d85. Chain 2 (Bitcoin): anchored in block 953955 (2026-06-16T14:29:53Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/262f3421-0790-4ced-b589-e6b3b987fde4.json and https://artists.proofprofile.net/proofs/artist/262f3421-0790-4ced-b589-e6b3b987fde4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T14:29:53Z
  text: {"copyright_id":"0x436458cdf21e76a984b5c4e69a6025511409da9eaa8dfd726732bf97ec956d85","name":"Dan Lang","registered_at":"2026-06-16T02:55:39Z","symbol":"NIM0915325","token_address":"0x3456821e03dcaa67b583d606bc0190af54c7af7d","type":"artist","uuid":"262f3421-0790-4ced-b589-e6b3b987fde4"}
album: By My Side
  type: MusicAlbum
  date published: 2010-12-04
album: Eyes Open
  type: MusicAlbum
  date published: 2014-08-01
album: Snow Fairy (From "Fairy Tail") [Piano Instrumental Cover]
  type: MusicAlbum
  date published: 2016-02-12
album: Lost Boy (Piano Instrumental)
  type: MusicAlbum
  date published: 2016-02-12