Double L
type: MusicGroup
genre: soca
popularity: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdef78493830235cff974944b9fed9f715dac9568ab0ae60d7c876ffb7dddfc8b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8eaff917-35bb-49ef-aebd-12374a9f48c4.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8eaff917-35bb-49ef-aebd-12374a9f48c4.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8eaff917-35bb-49ef-aebd-12374a9f48c4
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdef78493830235cff974944b9fed9f715dac9568ab0ae60d7c876ffb7dddfc8b","name":"Double L","registered_at":"2026-06-17T15:27:27Z","symbol":"NIM1438215","token_address":"0x48bc145a795e319c72e89b2d7b919541f6381ec1","type":"artist","uuid":"8eaff917-35bb-49ef-aebd-12374a9f48c4"}
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 0xdef78493830235cff974944b9fed9f715dac9568ab0ae60d7c876ffb7dddfc8b. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8eaff917-35bb-49ef-aebd-12374a9f48c4.json and https://artists.proofprofile.net/proofs/artist/8eaff917-35bb-49ef-aebd-12374a9f48c4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xdef78493830235cff974944b9fed9f715dac9568ab0ae60d7c876ffb7dddfc8b","name":"Double L","registered_at":"2026-06-17T15:27:27Z","symbol":"NIM1438215","token_address":"0x48bc145a795e319c72e89b2d7b919541f6381ec1","type":"artist","uuid":"8eaff917-35bb-49ef-aebd-12374a9f48c4"}
album: Diesel Riddim 2.0
  type: MusicAlbum
  date published: 2014
album: Pull up in the Lex
  type: MusicAlbum
  date published: 2017-05-30
album: Hot Bottle Riddim
  type: MusicAlbum
  date published: 2018-07-27
album: Rainy day
  type: MusicAlbum
  date published: 2025-02-18