Douglas Quin
type: MusicGroup
genre: drone
popularity: 2
followers: 417
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0fff6266af59f39fa454becfa84d08c250438c27f89f94ec033fffd17330bbf2
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/76b28334-16f1-42d4-9338-8749e88071fb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76b28334-16f1-42d4-9338-8749e88071fb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/76b28334-16f1-42d4-9338-8749e88071fb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0fff6266af59f39fa454becfa84d08c250438c27f89f94ec033fffd17330bbf2","name":"Douglas Quin","registered_at":"2026-06-17T06:54:10Z","symbol":"NIM1315900","token_address":"0x3438958cf2f8d8eea43c8bc0d49477c198823731","type":"artist","uuid":"76b28334-16f1-42d4-9338-8749e88071fb"}
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 0x0fff6266af59f39fa454becfa84d08c250438c27f89f94ec033fffd17330bbf2. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76b28334-16f1-42d4-9338-8749e88071fb.json and https://artists.proofprofile.net/proofs/artist/76b28334-16f1-42d4-9338-8749e88071fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x0fff6266af59f39fa454becfa84d08c250438c27f89f94ec033fffd17330bbf2","name":"Douglas Quin","registered_at":"2026-06-17T06:54:10Z","symbol":"NIM1315900","token_address":"0x3438958cf2f8d8eea43c8bc0d49477c198823731","type":"artist","uuid":"76b28334-16f1-42d4-9338-8749e88071fb"}
album: Forests: a Book of Hours
  type: MusicAlbum
  date published: 1999-01-01
album: Caratinga: Soundscapes from Brazil's Atlantic Rainforest
  type: MusicAlbum
  date published: 2001-01-01
album: Fathom
  type: MusicAlbum
  date published: 2010-05-11