Blue Hour
type: MusicGroup
description: thumb|Blue hour at the Old Cathedral of the Holy Name of Jesus, Bragança in Portugal The blue hour (from French ; ) is the period of twilight (in the morning or evening, around the nautical stage) whe
popularity: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf3077cd57f11198190c6582bd9b0f92ee687ce0175616443f8d66b37a351b073
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954346
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954346
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a070737-491f-4f7f-8509-1046b564fc7f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9a070737-491f-4f7f-8509-1046b564fc7f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9a070737-491f-4f7f-8509-1046b564fc7f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:51:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf3077cd57f11198190c6582bd9b0f92ee687ce0175616443f8d66b37a351b073","name":"Blue Hour","registered_at":"2026-06-17T19:25:42Z","symbol":"NIM1495100","token_address":"0x98b25183cad7979f41da122da0cab286a0f94f68","type":"artist","uuid":"9a070737-491f-4f7f-8509-1046b564fc7f"}
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 0xf3077cd57f11198190c6582bd9b0f92ee687ce0175616443f8d66b37a351b073. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9a070737-491f-4f7f-8509-1046b564fc7f.json and https://artists.proofprofile.net/proofs/artist/9a070737-491f-4f7f-8509-1046b564fc7f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:51:26Z
  text: {"copyright_id":"0xf3077cd57f11198190c6582bd9b0f92ee687ce0175616443f8d66b37a351b073","name":"Blue Hour","registered_at":"2026-06-17T19:25:42Z","symbol":"NIM1495100","token_address":"0x98b25183cad7979f41da122da0cab286a0f94f68","type":"artist","uuid":"9a070737-491f-4f7f-8509-1046b564fc7f"}
album: Shifting Shadows
  type: MusicAlbum
  date published: 2025-03-28
album: Shimmering Dusk
  type: MusicAlbum
  date published: 2025-03-28
album: Shifting Ember
  type: MusicAlbum
  date published: 2025-03-28
  track: Shifting Ember
    type: MusicRecording
    duration: PT2M40S
    duration ms: 160496
    explicit: false
    by artist: Blue Hour
    in album: Shifting Ember
      type: MusicAlbum
      date published: 2025-03-28
    isrc code: DEZN82499177
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T03:41:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8abf841c6baa01d3ca3ab1acb8dcec3c8039eef65953ee3f62f892e6f6ab6d7d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
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      value: 956484
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956484
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZN82499177
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T10:47:44Z
    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 0x8abf841c6baa01d3ca3ab1acb8dcec3c8039eef65953ee3f62f892e6f6ab6d7d. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/DEZN82499177.
      date published: 2026-07-03T10:47:44Z
    audio: Shifting Ember
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 176.031
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.479
      additional property: Energy
        type: PropertyValue
        value: 0.366
      additional property: Speechiness
        type: PropertyValue
        value: 0.044
      additional property: Acousticness
        type: PropertyValue
        value: 0.57
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.87
      additional property: Liveness
        type: PropertyValue
        value: 0.098
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.075
      additional property: Loudness (dB)
        type: PropertyValue
        value: -13.217
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Timeless Glow
  type: MusicAlbum
  date published: 2025-03-28
  track: Timeless Glow
    type: MusicRecording
    duration: PT3M3S
    duration ms: 183530
    explicit: false
    by artist: Blue Hour
    in album: Timeless Glow
      type: MusicAlbum
      date published: 2025-03-28
    isrc code: DEZN82499180
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:30:19+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5569b4c87de9f465d0fc2ab4ea66a2d77e0f228d93e70993b53692e694c82f2a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958322
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958322
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEZN82499180
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T23:31:59Z
    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 0x5569b4c87de9f465d0fc2ab4ea66a2d77e0f228d93e70993b53692e694c82f2a. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:31:59Z), 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/DEZN82499180.
      date published: 2026-07-16T23:31:59Z
    audio: Timeless Glow
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 86.986
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.566
      additional property: Energy
        type: PropertyValue
        value: 0.47
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.52
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.234
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name

Liveness
type: PropertyValue
value: 0.114

Valence (Positivity)
type: PropertyValue
value: 0.254

Loudness (dB)
type: PropertyValue
value: -12.713

Key Name
type: PropertyValue
value: E

Mode Name
type: PropertyValue
value: Major