Crosscheck
type: MusicGroup
genre: hardcore
genre: hardcore punk
popularity: 6
followers: 637
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8f8391725e8611511cb75171771ba781a09b7fafd012796bd9a23b879faa3e72
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3df4597-4deb-4372-a385-9843fad3a7a6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b3df4597-4deb-4372-a385-9843fad3a7a6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b3df4597-4deb-4372-a385-9843fad3a7a6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
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 0x8f8391725e8611511cb75171771ba781a09b7fafd012796bd9a23b879faa3e72. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b3df4597-4deb-4372-a385-9843fad3a7a6.json and https://artists.proofprofile.net/proofs/artist/b3df4597-4deb-4372-a385-9843fad3a7a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
album: Minor Penalty
  type: MusicAlbum
  date published: 2020-06-17
album: One Step Back
  type: MusicAlbum
  date published: 2020-08-07
album: Death of Us
  type: MusicAlbum
  date published: 2020-12-09
album: Loudmouth
  type: MusicAlbum
  date published: 2021-01-08
album: Overtime
  type: MusicAlbum
  date published: 2021-01-20
album: Crossed Off!
  type: MusicAlbum
  date published: 2021-09-03
album: 2023
  type: MusicAlbum
  date published: 2023-01-20
album: Condition Of Mind
  type: MusicAlbum
  date published: 2024-03-01
album: Break
  type: MusicAlbum
  date published: 2024-09-12
album: On The Offensive
  type: MusicAlbum
  date published: 2024-10-03