Before
type: MusicGroup
genre: deathrock
genre: post-punk
popularity: 2
followers: 333
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x78b8a69397bb4bbbd4639a419e943d9a372cd9851ecac9bd91088c9a6a2e71f6
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954032
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954032
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b2ba483-cbb7-4fc8-bf97-faeb6278de8e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3b2ba483-cbb7-4fc8-bf97-faeb6278de8e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3b2ba483-cbb7-4fc8-bf97-faeb6278de8e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:59:41Z
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78b8a69397bb4bbbd4639a419e943d9a372cd9851ecac9bd91088c9a6a2e71f6. Chain 2 (Bitcoin): anchored in block 954032 (2026-06-17T01:59:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3b2ba483-cbb7-4fc8-bf97-faeb6278de8e.json and https://artists.proofprofile.net/proofs/artist/3b2ba483-cbb7-4fc8-bf97-faeb6278de8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T01:59:41Z
album: En vivo en Hurling (En Vivo)
  type: MusicAlbum
  date published: 2001-09-29
album: BEFORE
  type: MusicAlbum
  date published: 2003-02-09
album: 30 Minutes
  type: MusicAlbum
  date published: 2011-05-17