Echo Noir
type: MusicGroup
popularity: 3
followers: 94
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5009115801f3afc9f1df82004773d6967c8f3864d93ea29347f8a9be73f90251
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7eab41c6-4c5a-4b56-85d8-c5dab4e17480.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7eab41c6-4c5a-4b56-85d8-c5dab4e17480.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7eab41c6-4c5a-4b56-85d8-c5dab4e17480
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5009115801f3afc9f1df82004773d6967c8f3864d93ea29347f8a9be73f90251","name":"Echo Noir","registered_at":"2026-06-17T09:48:48Z","symbol":"NIM1357510","token_address":"0xcee7e3560abd9329d3fa57c7d39d2f23d6ff9d67","type":"artist","uuid":"7eab41c6-4c5a-4b56-85d8-c5dab4e17480"}
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 0x5009115801f3afc9f1df82004773d6967c8f3864d93ea29347f8a9be73f90251. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7eab41c6-4c5a-4b56-85d8-c5dab4e17480.json and https://artists.proofprofile.net/proofs/artist/7eab41c6-4c5a-4b56-85d8-c5dab4e17480.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x5009115801f3afc9f1df82004773d6967c8f3864d93ea29347f8a9be73f90251","name":"Echo Noir","registered_at":"2026-06-17T09:48:48Z","symbol":"NIM1357510","token_address":"0xcee7e3560abd9329d3fa57c7d39d2f23d6ff9d67","type":"artist","uuid":"7eab41c6-4c5a-4b56-85d8-c5dab4e17480"}
album: Blue Vibes
  type: MusicAlbum
  date published: 2023-06-27
album: Sunlit dreams
  type: MusicAlbum
  date published: 2024-06-01
  track: Sunlit dreams
    type: MusicRecording
    duration: PT2M0S
    duration ms: 120000
    explicit: false
    by artist: Echo Noir
    in album: Sunlit dreams
      type: MusicAlbum
      date published: 2024-06-01
    isrc code: NL9KR2315469
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T11:55:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc13799064b5fe6047a3fd82ccc1c9d732e3d6b13e9935a5ec998a81fdea96cd5
    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/NL9KR2315469
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc13799064b5fe6047a3fd82ccc1c9d732e3d6b13e9935a5ec998a81fdea96cd5. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NL9KR2315469.
      date published: 2026-07-05T18:48:28Z
    audio: Sunlit dreams
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.013
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.935
      additional property: Energy
        type: PropertyValue
        value: 0.307
      additional property: Speechiness
        type: PropertyValue
        value: 0.103
      additional property: Acousticness
        type: PropertyValue
        value: 0.029
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.424
      additional property: Loudness (dB)
        type: PropertyValue
        value: -14.85
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major