Xavier Jara
type: MusicGroup
popularity: 10
followers: 889
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaf6b39b3c73ff7cbc1a4aae86127b02dc140921d2c41ef7a5e031a981ed985ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954615
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954615
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5eab31c-9ba4-4f85-a4d3-82ac65fe5b57.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c5eab31c-9ba4-4f85-a4d3-82ac65fe5b57.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c5eab31c-9ba4-4f85-a4d3-82ac65fe5b57
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T22:44:50Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaf6b39b3c73ff7cbc1a4aae86127b02dc140921d2c41ef7a5e031a981ed985ac","name":"Xavier Jara","registered_at":"2026-06-20T21:28:04Z","symbol":"NIM1718951","token_address":"0x3280f54c2a2f15675239e749a6ee0f1148015ba9","type":"artist","uuid":"c5eab31c-9ba4-4f85-a4d3-82ac65fe5b57"}
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 0xaf6b39b3c73ff7cbc1a4aae86127b02dc140921d2c41ef7a5e031a981ed985ac. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c5eab31c-9ba4-4f85-a4d3-82ac65fe5b57.json and https://artists.proofprofile.net/proofs/artist/c5eab31c-9ba4-4f85-a4d3-82ac65fe5b57.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T22:44:50Z
  text: {"copyright_id":"0xaf6b39b3c73ff7cbc1a4aae86127b02dc140921d2c41ef7a5e031a981ed985ac","name":"Xavier Jara","registered_at":"2026-06-20T21:28:04Z","symbol":"NIM1718951","token_address":"0x3280f54c2a2f15675239e749a6ee0f1148015ba9","type":"artist","uuid":"c5eab31c-9ba4-4f85-a4d3-82ac65fe5b57"}
album: Xavier Jara Guitar Recital
  type: MusicAlbum
  date published: 2017-06-09
  track: Fantasia in G Major, P. 73 (Arr. X. Jara for Guitar)
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188266
    explicit: false
    by artist: Xavier Jara
    in album: Xavier Jara Guitar Recital
      type: MusicAlbum
      date published: 2017-06-09
    isrc code: HKI191705703
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-07T14:35:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc04869c21b6cfca5433fd83c9bf1072aea02250a71a96d1e9dda2495c5d00098
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957118
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957118
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191705703
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-08T03:20:19Z
    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 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 0xc04869c21b6cfca5433fd83c9bf1072aea02250a71a96d1e9dda2495c5d00098. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/HKI191705703 — a six-check JSON result.
      date published: 2026-07-08T03:20:19Z
    audio: Fantasia in G Major, P. 73 (Arr. X. Jara for Guitar)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 145.131
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.3
      additional property: Energy
        type: PropertyValue
        value: 0.306
      additional property: Speechiness
        type: PropertyValue
        value: 0.039
      additional property: Acousticness
        type: PropertyValue
        value: 0.983
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.933
      additional property: Liveness
        type: PropertyValue
        value: 0.09
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.54
      additional property: Loudness (dB)
        type: PropertyValue
        value: -19.468
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Xavier Jara Guitar Recital
  type: MusicAlbum
  date published: 2017-06-09