Matti Salo Quartet
type: MusicGroup
popularity: 3
followers: 263
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x26a7d75235ae5c48bc659e74db13cbd7d00fbc08efdbc5ae1925ec8687c8917d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21fc3986-1d88-4448-b604-e581c6501525.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/21fc3986-1d88-4448-b604-e581c6501525.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/21fc3986-1d88-4448-b604-e581c6501525
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x26a7d75235ae5c48bc659e74db13cbd7d00fbc08efdbc5ae1925ec8687c8917d","name":"Matti Salo Quartet","registered_at":"2026-06-16T01:41:08Z","symbol":"NIM0897521","token_address":"0x05e1740a049e44a93159a96cb3a38b385c6dfa99","type":"artist","uuid":"21fc3986-1d88-4448-b604-e581c6501525"}
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 0x26a7d75235ae5c48bc659e74db13cbd7d00fbc08efdbc5ae1925ec8687c8917d. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21fc3986-1d88-4448-b604-e581c6501525.json and https://artists.proofprofile.net/proofs/artist/21fc3986-1d88-4448-b604-e581c6501525.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x26a7d75235ae5c48bc659e74db13cbd7d00fbc08efdbc5ae1925ec8687c8917d","name":"Matti Salo Quartet","registered_at":"2026-06-16T01:41:08Z","symbol":"NIM0897521","token_address":"0x05e1740a049e44a93159a96cb3a38b385c6dfa99","type":"artist","uuid":"21fc3986-1d88-4448-b604-e581c6501525"}
album: Tetraktys
  type: MusicAlbum
  date published: 2019-05-31
album: Boreal
  type: MusicAlbum
  date published: 2020-10-23
album: Bandipur
  type: MusicAlbum
  date published: 2022-09-30
album: Nepal
  type: MusicAlbum
  date published: 2022-10-14
album: Can You Hear Me?
  type: MusicAlbum
  date published: 2024-08-30
album: 4 + 4
  type: MusicAlbum
  date published: 2024-09-12