Matt Otten
type: MusicGroup
genre: smooth jazz
popularity: 3
followers: 508
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7979d802fbbbde9d143e4f4f46eee3f33d9d69833016eff1e98b7499de7c05c2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35b1b22d-4d39-4338-9f2e-539f96a3e91b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35b1b22d-4d39-4338-9f2e-539f96a3e91b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/35b1b22d-4d39-4338-9f2e-539f96a3e91b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7979d802fbbbde9d143e4f4f46eee3f33d9d69833016eff1e98b7499de7c05c2","name":"Matt Otten","registered_at":"2026-06-16T08:15:20Z","symbol":"NIM0991684","token_address":"0x61aadc2d8e53d050a8e01cf8572f757de78bb118","type":"artist","uuid":"35b1b22d-4d39-4338-9f2e-539f96a3e91b"}
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 0x7979d802fbbbde9d143e4f4f46eee3f33d9d69833016eff1e98b7499de7c05c2. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35b1b22d-4d39-4338-9f2e-539f96a3e91b.json and https://artists.proofprofile.net/proofs/artist/35b1b22d-4d39-4338-9f2e-539f96a3e91b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x7979d802fbbbde9d143e4f4f46eee3f33d9d69833016eff1e98b7499de7c05c2","name":"Matt Otten","registered_at":"2026-06-16T08:15:20Z","symbol":"NIM0991684","token_address":"0x61aadc2d8e53d050a8e01cf8572f757de78bb118","type":"artist","uuid":"35b1b22d-4d39-4338-9f2e-539f96a3e91b"}
album: Secret Combination
  type: MusicAlbum
  date published: 2006-01-01
album: Cruising
  type: MusicAlbum
  date published: 2011-05-20
album: April Song
  type: MusicAlbum
  date published: 2013-09-13
album: Scenes from Amsterdam
  type: MusicAlbum
  date published: 2014-08-01
album: Back in Time Blues
  type: MusicAlbum
  date published: 2014-08-27
  track: Back in Time Blues
    type: MusicRecording
    duration: PT2M51S
    duration ms: 171933
    explicit: false
    by artist: Matt Otten
    in album: Back in Time Blues
      type: MusicAlbum
      date published: 2014-08-27
    genre: smooth jazz
    isrc code: USHM81469308
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T00:41:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xbdf2389501034bb546e923d324fe9696d1c2c2205938280a8155505bf7bc1fa6
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958802
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958802
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81469308
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T01:04:02Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdf2389501034bb546e923d324fe9696d1c2c2205938280a8155505bf7bc1fa6. Chain 2 (Bitcoin): anchored in block 958802 (2026-07-20T01:04:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM81469308.
      date published: 2026-07-20T01:04:02Z
    audio: Back in Time Blues
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.2
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.65
      additional property: Energy
        type: PropertyValue
        value: 0.394
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.878
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.4
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.599
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.817
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Bianca
  type: MusicAlbum
  date published: 2014-09-04