Poundsign
type: MusicGroup
genre: jangle pop
popularity: 4
followers: 502
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd5741cc231dda374a4242c84c8def1793587db731b99cdc2381a44c0e807b81a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9f5deaf-3e4f-4c38-a887-33db62a0c4e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a9f5deaf-3e4f-4c38-a887-33db62a0c4e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a9f5deaf-3e4f-4c38-a887-33db62a0c4e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
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 0xd5741cc231dda374a4242c84c8def1793587db731b99cdc2381a44c0e807b81a. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a9f5deaf-3e4f-4c38-a887-33db62a0c4e8.json and https://artists.proofprofile.net/proofs/artist/a9f5deaf-3e4f-4c38-a887-33db62a0c4e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
album: House of Faith Demo Tape '93
  type: MusicAlbum
  date published: 1993-01-01
album: Disaster
  type: MusicAlbum
  date published: 1994-01-01
album: The Almondy Many
  type: MusicAlbum
  date published: 1996-01-01
album: Library Dream '96
  type: MusicAlbum
  date published: 1996-06-01
album: Michigan
  type: MusicAlbum
  date published: 1997-06-01
album: Wavelength
  type: MusicAlbum
  date published: 1998-01-01
album: Wavelength
  type: MusicAlbum
  date published: 1998-05-01