Duo Method
type: MusicGroup
popularity: 14
followers: 33
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf8518221960f136e4fce6498d89ed33932b3020d60ba7ceca3df0a18228fc365
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953641
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953641
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c658e18-c880-4681-94ad-b88cb2c596b8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3c658e18-c880-4681-94ad-b88cb2c596b8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3c658e18-c880-4681-94ad-b88cb2c596b8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T13:54:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf8518221960f136e4fce6498d89ed33932b3020d60ba7ceca3df0a18228fc365","name":"Duo Method","registered_at":"2026-06-14T10:46:41Z","symbol":"NIM0428745","token_address":"0x54ba287ad3e980f12187ebdddcd8e3c0e9aab325","type":"artist","uuid":"3c658e18-c880-4681-94ad-b88cb2c596b8"}
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 0xf8518221960f136e4fce6498d89ed33932b3020d60ba7ceca3df0a18228fc365. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3c658e18-c880-4681-94ad-b88cb2c596b8.json and https://artists.proofprofile.net/proofs/artist/3c658e18-c880-4681-94ad-b88cb2c596b8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xf8518221960f136e4fce6498d89ed33932b3020d60ba7ceca3df0a18228fc365","name":"Duo Method","registered_at":"2026-06-14T10:46:41Z","symbol":"NIM0428745","token_address":"0x54ba287ad3e980f12187ebdddcd8e3c0e9aab325","type":"artist","uuid":"3c658e18-c880-4681-94ad-b88cb2c596b8"}
album: Pulsar EP
  type: MusicAlbum
  date published: 2008-05-06
album: 35 EP
  type: MusicAlbum
  date published: 2008-12-16
album: Poisoned EP
  type: MusicAlbum
  date published: 2009-01-13
album: Black Grip
  type: MusicAlbum
  date published: 2012-03-05
album: Little About
  type: MusicAlbum
  date published: 2025-01-20