Down By 18
type: MusicGroup
genre: opm
genre: pinoy indie
popularity: 3
followers: 688
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf5ca3e9ccf4a7dcc8081019287103d6f82354804df0c9fe6adc75a8f4a936e18
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954659
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954659
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbe81a4f-b166-4381-9b30-7f02d5dabc2d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/dbe81a4f-b166-4381-9b30-7f02d5dabc2d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/dbe81a4f-b166-4381-9b30-7f02d5dabc2d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T06:14:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf5ca3e9ccf4a7dcc8081019287103d6f82354804df0c9fe6adc75a8f4a936e18","name":"Down By 18","registered_at":"2026-06-21T04:54:31Z","symbol":"NIM1825233","token_address":"0x1f599fb8287050f11ab0273b31f925a1998438b1","type":"artist","uuid":"dbe81a4f-b166-4381-9b30-7f02d5dabc2d"}
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 0xf5ca3e9ccf4a7dcc8081019287103d6f82354804df0c9fe6adc75a8f4a936e18. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dbe81a4f-b166-4381-9b30-7f02d5dabc2d.json and https://artists.proofprofile.net/proofs/artist/dbe81a4f-b166-4381-9b30-7f02d5dabc2d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T06:14:42Z
  text: {"copyright_id":"0xf5ca3e9ccf4a7dcc8081019287103d6f82354804df0c9fe6adc75a8f4a936e18","name":"Down By 18","registered_at":"2026-06-21T04:54:31Z","symbol":"NIM1825233","token_address":"0x1f599fb8287050f11ab0273b31f925a1998438b1","type":"artist","uuid":"dbe81a4f-b166-4381-9b30-7f02d5dabc2d"}
album: Piring
  type: MusicAlbum
  date published: 2019-04-26
album: Piring
  type: MusicAlbum
  date published: 2019-04-26
album: Kulay Bahaghari
  type: MusicAlbum
  date published: 2019-12-13
album: Kulay Bahaghari
  type: MusicAlbum
  date published: 2019-12-13
album: Balik Sa Simula
  type: MusicAlbum
  date published: 2020-08-21
album: Balik Sa Simula
  type: MusicAlbum
  date published: 2020-08-21
  track: Balik Sa Simula
    type: MusicRecording
    duration: PT5M29S
    duration ms: 329681
    explicit: false
    by artist: Down By 18
    in album: Balik Sa Simula
      type: MusicAlbum
      date published: 2020-08-21
    genre: opm
    genre: pinoy indie
    isrc code: PHV032011134
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T14:59:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8718d377baa5cc1662d84c203e3947928d6c26d707ffb964565db41df79b54b5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959023
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959023
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PHV032011134
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T15:22:58Z
    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 0x8718d377baa5cc1662d84c203e3947928d6c26d707ffb964565db41df79b54b5. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/PHV032011134.
      date published: 2026-07-21T15:22:58Z
    audio: Balik Sa Simula
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.28
      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: 0.484
      additional property: Energy
        type: PropertyValue
        value: 0.545
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.718
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.11
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.178
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.055
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ayoko Na
  type: MusicAlbum
  date published: 2020-11-06
album: Ayoko Na
  type: MusicAlbum
  date published: 2020-11-06
album: Love Is a Promise
  type: MusicAlbum
  date published: 2021-10-22