The Purest Blue
type: MusicGroup
genre: dream pop
genre: pinoy indie
popularity: 8
followers: 909
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7337a34082bde61bcbe53374959cbc1075f4e62d14805ad99009367b05ea9825
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954728
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954728
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faa5a08e-3f3d-45de-a185-763329473b01.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/faa5a08e-3f3d-45de-a185-763329473b01.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/faa5a08e-3f3d-45de-a185-763329473b01
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7337a34082bde61bcbe53374959cbc1075f4e62d14805ad99009367b05ea9825","name":"The Purest Blue","registered_at":"2026-06-21T16:59:37Z","symbol":"NIM1979980","token_address":"0x508b85d2f062bef315173b87c1f35e60c7bb2d54","type":"artist","uuid":"faa5a08e-3f3d-45de-a185-763329473b01"}
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 0x7337a34082bde61bcbe53374959cbc1075f4e62d14805ad99009367b05ea9825. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/faa5a08e-3f3d-45de-a185-763329473b01.json and https://artists.proofprofile.net/proofs/artist/faa5a08e-3f3d-45de-a185-763329473b01.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x7337a34082bde61bcbe53374959cbc1075f4e62d14805ad99009367b05ea9825","name":"The Purest Blue","registered_at":"2026-06-21T16:59:37Z","symbol":"NIM1979980","token_address":"0x508b85d2f062bef315173b87c1f35e60c7bb2d54","type":"artist","uuid":"faa5a08e-3f3d-45de-a185-763329473b01"}
album: Stationary Bike
  type: MusicAlbum
  date published: 2023-05-12
  track: Stationary Bike
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166187
    explicit: false
    by artist: The Purest Blue
    in album: Stationary Bike
      type: MusicAlbum
      date published: 2023-05-12
    genre: dream pop
    genre: pinoy indie
    isrc code: FRX452361005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T22:20:56+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1740cbca7b01cf62a381c5b976ba7f66dcf9b0548ac3e22f69ee4e1be501954f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958621
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958621
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452361005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T22:59:44Z
    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 0x1740cbca7b01cf62a381c5b976ba7f66dcf9b0548ac3e22f69ee4e1be501954f. Chain 2 (Bitcoin): anchored in block 958621 (2026-07-18T22:59:44Z), 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/FRX452361005.
      date published: 2026-07-18T22:59:44Z
    audio: Stationary Bike
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.982
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.53
      additional property: Energy
        type: PropertyValue
        value: 0.93
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.021
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.293
      additional property: Liveness
        type: PropertyValue
        value: 0.606
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.771
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.857
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Stationary Bike
  type: MusicAlbum
  date published: 2023-05-12
album: Tenderness and Purity
  type: MusicAlbum
  date published: 2023-07-14
  track: Tenderness and Purity
    type: MusicRecording
    duration: PT2M8S
    duration ms: 128000
    explicit: false
    by artist: The Purest Blue
    in album: Tenderness and Purity
      type: MusicAlbum
      date published: 2023-07-14
    genre: dream pop
    genre: pinoy indie
    isrc code: FRX872382315
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T01:28:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb86f0c202444a5a4da0d8977ee9b7af47babdf9cdf3c2fe5f96444722f805c02
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872382315
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0xb86f0c202444a5a4da0d8977ee9b7af47babdf9cdf3c2fe5f96444722f805c02. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/FRX872382315.
      date published: 2026-07-03T08:56:35Z
    audio: Tenderness and Purity
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 185.932
      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: 0.417
      additional property: Energy
        type: PropertyValue
        value: 0.678
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.002
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: All is True
album: Macopa Tree / Marilao

Instrumentalness
type: PropertyValue
value: 0.319

Liveness
type: PropertyValue
value: 0.26

Valence (Positivity)
type: PropertyValue
value: 0.485

Loudness (dB)
type: PropertyValue
value: -7.331

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major

Tenderness and Purity
type: MusicAlbum
date published: 2023-07-14

All is True
type: MusicAlbum
date published: 2023-07-21

All is True
type: MusicAlbum
date published: 2023-07-21

Macopa Tree / Marilao
type: MusicAlbum
date published: 2025-10-17