19
type: MusicGroup
description: Nineteen or 19 may refer to: 19 (number), the natural number following 18 and preceding 20 One of the years 19 BC, AD 19, 1919, 2019 Films 19 (film), a 2001 Japanese film Nineteen (1987 film)
popularity: 7
followers: 430
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe15d9c66d49c5e0064eda6ec0513a322b5c835453b2ad4c306986ae0bfb54bd4
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954014
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954014
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3388d1b4-d673-4e4d-b702-b50b0508050d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3388d1b4-d673-4e4d-b702-b50b0508050d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3388d1b4-d673-4e4d-b702-b50b0508050d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T22:46:20Z
additional property: OTSCanonicalRecord
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 0xe15d9c66d49c5e0064eda6ec0513a322b5c835453b2ad4c306986ae0bfb54bd4. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3388d1b4-d673-4e4d-b702-b50b0508050d.json and https://artists.proofprofile.net/proofs/artist/3388d1b4-d673-4e4d-b702-b50b0508050d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
album: 777
  type: MusicAlbum
  date published: 2019-09-14
  track: 777
    type: MusicRecording
    duration: PT2M3S
    duration ms: 123370
    explicit: false
    by artist: 19
    in album: 777
      type: MusicAlbum
      date published: 2019-09-14
    isrc code: QZS632219548
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T17:34:59+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xba8778c9df93c397273c4edd1c9dcad96ed96e3e007fbaa3e18aef348e295285
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958180
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958180
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS632219548
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T17:59:52Z
    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 0xba8778c9df93c397273c4edd1c9dcad96ed96e3e007fbaa3e18aef348e295285. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T17:59:52Z), 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/QZS632219548.
      date published: 2026-07-15T17:59:52Z
    audio: 777
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 117.588
      additional property: Musical Key
        type: PropertyValue
        value: 5
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.505
      additional property: Energy
        type: PropertyValue
        value: 0.534
      additional property: Speechiness
        type: PropertyValue
        value: 0.035
      additional property: Acousticness
        type: PropertyValue
        value: 0.007
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.843
      additional property: Liveness
        type: PropertyValue
        value: 0.113
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.258
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.266
      additional property: Key Name
        type: PropertyValue
        value: F
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ugh
  type: MusicAlbum
  date published: 2022-07-15
album: lilac19
  type: MusicAlbum
  date published: 2022-07-29
track: FUU
  type: MusicRecording
  duration: PT1M51S
  duration ms: 111433
  explicit: false
  by artist: Lilac
  by artist: 19
  in album: myself
    type: MusicAlbum
    date published: 2023-07-18
  genre: glitchcore
  genre: glitchbreak
  genre: hyper-rock
  isrc code: QZS652301187
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T23:04:03+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x22d6d69a5a9f7d541d042c4e4ba791d85c7478bf4c5ee62e1aa8bbcc4dffd8eb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960163
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960163
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZS652301187
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T23:20:38Z
  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 0x22d6d69a5a9f7d541d042c4e4ba791d85c7478bf4c5ee62e1aa8bbcc4dffd8eb. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/QZS652301187.
    date published: 2026-07-29T23:20:38Z
  audio: FUU
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 125.527
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.604
    additional property: Energy
      type: PropertyValue
      value: 0.759
    additional property: Speechiness
      type: PropertyValue
      value: 0.187
    additional property: Acousticness
      type: PropertyValue
      value: 0.727
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.175
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Liveness
type: PropertyValue
value: 0.093

Valence (Positivity)
type: PropertyValue
value: 0.473

Loudness (dB)
type: PropertyValue
value: -13.151

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Major