ContraNova
type: MusicGroup
popularity: 18
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x84e87979c4f67810cebf8b7c4d38c8d4c99f1cb071ea63139e7d67b70438466b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953694
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953694
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6c697cec-6446-4d7a-b580-6c0aa04b097f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/6c697cec-6446-4d7a-b580-6c0aa04b097f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/6c697cec-6446-4d7a-b580-6c0aa04b097f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:38:09Z
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 0x84e87979c4f67810cebf8b7c4d38c8d4c99f1cb071ea63139e7d67b70438466b. Chain 2 (Bitcoin): anchored in block 953694 (2026-06-14T21:38:09Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6c697cec-6446-4d7a-b580-6c0aa04b097f.json and https://artists.proofprofile.net/proofs/artist/6c697cec-6446-4d7a-b580-6c0aa04b097f.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T21:38:09Z
album: Infinity In All Directions
  type: MusicAlbum
  date published: 2007-01-01
album: Silver Tongue Silver Knife
  type: MusicAlbum
  date published: 2016-09-01
album: Avalanche of Days: Electronic Instrumentals, Vol. 1
  type: MusicAlbum
  date published: 2018-04-20
album: The Last Person I Want to Be (Sold My Bassoon for Rock and Roll)
  type: MusicAlbum
  date published: 2020-12-07
album: E.V.H. is a Friend of Mine
  type: MusicAlbum
  date published: 2021-07-29
album: Solitary Dancer
  type: MusicAlbum
  date published: 2021-09-15
album: Ain't Love Grand
  type: MusicAlbum
  date published: 2021-12-07