Diana Lucas
type: MusicGroup
description: Diana Lucas (born 6 December 1986 in Alenquer, near Lisbon, Portugal) is a Portuguese singer. She was active as a singer from the late 90s to the late 2000s. After taking a break from her music career
popularity: 16
followers: 7075
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xfe1ffa017121851f6a0115d97eeb8d64dd209e922d3d3a9188baf181aa11026a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b13fb87-0f0b-4746-964d-ffb1cadbc464.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2b13fb87-0f0b-4746-964d-ffb1cadbc464.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2b13fb87-0f0b-4746-964d-ffb1cadbc464
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xfe1ffa017121851f6a0115d97eeb8d64dd209e922d3d3a9188baf181aa11026a","name":"Diana Lucas","registered_at":"2026-06-14T08:55:10Z","symbol":"NIM0402148","token_address":"0xaac99add603b0c302e4f3be36c9ef0bfe81d849d","type":"artist","uuid":"2b13fb87-0f0b-4746-964d-ffb1cadbc464"}
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 0xfe1ffa017121851f6a0115d97eeb8d64dd209e922d3d3a9188baf181aa11026a. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b13fb87-0f0b-4746-964d-ffb1cadbc464.json and https://artists.proofprofile.net/proofs/artist/2b13fb87-0f0b-4746-964d-ffb1cadbc464.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0xfe1ffa017121851f6a0115d97eeb8d64dd209e922d3d3a9188baf181aa11026a","name":"Diana Lucas","registered_at":"2026-06-14T08:55:10Z","symbol":"NIM0402148","token_address":"0xaac99add603b0c302e4f3be36c9ef0bfe81d849d","type":"artist","uuid":"2b13fb87-0f0b-4746-964d-ffb1cadbc464"}
album: Pontas Soltas
  type: MusicAlbum
  date published: 2008-09-15
  track: Bounce
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228813
    explicit: false
    by artist: Diana Lucas
    in album: Pontas Soltas
      type: MusicAlbum
      date published: 2008-09-15
    isrc code: PTFA10800804
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T07:25:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x55555d360cf324082c9dfa64f441216f26191b6e38fb9c0f4479be6ca116f090
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTFA10800804
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x55555d360cf324082c9dfa64f441216f26191b6e38fb9c0f4479be6ca116f090. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/PTFA10800804.
      date published: 2026-07-04T10:04:33Z
    audio: Bounce
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.067
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.814
      additional property: Energy
        type: PropertyValue
        value: 0.672
      additional property: Speechiness
        type: PropertyValue
        value: 0.093
      additional property: Acousticness
        type: PropertyValue
        value: 0.237
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.34
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.878
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.769
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Junto a Ti
  type: MusicAlbum
  date published: 2015-07-31
album: Acabou
  type: MusicAlbum
  date published: 2019-02-18
album: Até Ao Fim
  type: MusicAlbum
  date published: 2020-07-17
album: Vou Lá Estar
  type: MusicAlbum
  date published: 2020-11-27
  track: Vou Lá Estar
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179130
    explicit: false
    by artist: Diana Lucas
    in album: Vou Lá Estar
      type: MusicAlbum
      date published: 2020-11-27
    isrc code: QMFME2040023
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T18:22:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc563ba0a1144a93b4abfe9d350da08ac226ffed8c2222eb0627165f160c5e750
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958316
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958316
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMFME2040023
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T19:42:29Z
    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 0xc563ba0a1144a93b4abfe9d350da08ac226ffed8c2222eb0627165f160c5e750. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/QMFME2040023.
      date published: 2026-07-16T19:42:29Z
    audio: Vou Lá Estar
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 137.92
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.626
      additional property: Energy
        type: PropertyValue
        value: 0.35
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Vai

Acousticness
type: PropertyValue
value: 0.68

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.113

Valence (Positivity)
type: PropertyValue
value: 0.368

Loudness (dB)
type: PropertyValue
value: -8.339

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Minor

Vai
type: MusicAlbum
date published: 2022-02-11