Double X
type: MusicGroup
genre: v-pop
description: Double X may refer to: Double X (album), a 2006 album by Bonfire Double X (feminist art collective) Double X: The Name of the Game, a 1992 British thriller film Doctor Double X, a DC Comics villain D
popularity: 30
followers: 31
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x59acdac7836d26697c788162c402fb8b9bc51ef22e6223163273e95c90276481
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12424b14-6c9e-416e-9873-e10487319d23.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/12424b14-6c9e-416e-9873-e10487319d23.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/12424b14-6c9e-416e-9873-e10487319d23
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x59acdac7836d26697c788162c402fb8b9bc51ef22e6223163273e95c90276481","name":"Double X","registered_at":"2026-06-11T12:13:33Z","symbol":"NIM0024828","token_address":"0xc404ad21e2cddb76bcbed2372098f7bf9348e39d","type":"artist","uuid":"12424b14-6c9e-416e-9873-e10487319d23"}
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 0x59acdac7836d26697c788162c402fb8b9bc51ef22e6223163273e95c90276481. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/12424b14-6c9e-416e-9873-e10487319d23.json and https://artists.proofprofile.net/proofs/artist/12424b14-6c9e-416e-9873-e10487319d23.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x59acdac7836d26697c788162c402fb8b9bc51ef22e6223163273e95c90276481","name":"Double X","registered_at":"2026-06-11T12:13:33Z","symbol":"NIM0024828","token_address":"0xc404ad21e2cddb76bcbed2372098f7bf9348e39d","type":"artist","uuid":"12424b14-6c9e-416e-9873-e10487319d23"}