Mel Spen
type: MusicGroup
popularity: 2
followers: 384
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc47f542af7f51f7a80971cf5aeb08bdee5329b985e30208272471765209e0d5e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954031
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954031
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a7121d6-98fb-4c7d-930c-8de9702ab1db.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3a7121d6-98fb-4c7d-930c-8de9702ab1db.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3a7121d6-98fb-4c7d-930c-8de9702ab1db
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T01:43:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc47f542af7f51f7a80971cf5aeb08bdee5329b985e30208272471765209e0d5e","name":"Mel Spen","registered_at":"2026-06-16T09:57:23Z","symbol":"NIM1016035","token_address":"0xa1e40ab1eaed4bb6961ba4b16afb2efe6be70f23","type":"artist","uuid":"3a7121d6-98fb-4c7d-930c-8de9702ab1db"}
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 0xc47f542af7f51f7a80971cf5aeb08bdee5329b985e30208272471765209e0d5e. Chain 2 (Bitcoin): anchored in block 954031 (2026-06-17T01:43:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3a7121d6-98fb-4c7d-930c-8de9702ab1db.json and https://artists.proofprofile.net/proofs/artist/3a7121d6-98fb-4c7d-930c-8de9702ab1db.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T01:43:23Z
  text: {"copyright_id":"0xc47f542af7f51f7a80971cf5aeb08bdee5329b985e30208272471765209e0d5e","name":"Mel Spen","registered_at":"2026-06-16T09:57:23Z","symbol":"NIM1016035","token_address":"0xa1e40ab1eaed4bb6961ba4b16afb2efe6be70f23","type":"artist","uuid":"3a7121d6-98fb-4c7d-930c-8de9702ab1db"}
album: Whimsical Nocturne
  type: MusicAlbum
  date published: 2024-06-03
album: Arioso For Piano
  type: MusicAlbum
  date published: 2024-07-06
  track: Arioso For Piano
    type: MusicRecording
    duration: PT4M18S
    duration ms: 258577
    explicit: false
    by artist: Mel Spen
    in album: Arioso For Piano
      type: MusicAlbum
      date published: 2024-07-06
    isrc code: QZPLS2448324
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T12:05:16+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfde24ebfb43f7287afa03306ec2beb3d32b476f239fa0764a89d2a6da75f74e4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZPLS2448324
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0xfde24ebfb43f7287afa03306ec2beb3d32b476f239fa0764a89d2a6da75f74e4. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/QZPLS2448324 — a six-check JSON result.
      date published: 2026-07-05T18:48:28Z
    audio: Arioso For Piano
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 71.276
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.445
      additional property: Energy
        type: PropertyValue
        value: 0.303
      additional property: Speechiness
        type: PropertyValue
        value: 0.054
      additional property: Acousticness
        type: PropertyValue
        value: 0.893
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.86
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.351
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.83
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Arioso for Piano
  type: MusicAlbum
  date published: 2025-04-02