Letícia e Vanessa
type: MusicGroup
popularity: 14
followers: 430
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x95695646fe8886cefeadb7191853be272461a81098f34df606a339aea78efd21
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/2dd4f8c8-5118-46da-93eb-539c4fe7af15.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2dd4f8c8-5118-46da-93eb-539c4fe7af15.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2dd4f8c8-5118-46da-93eb-539c4fe7af15
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x95695646fe8886cefeadb7191853be272461a81098f34df606a339aea78efd21","name":"Letícia e Vanessa","registered_at":"2026-06-14T09:12:48Z","symbol":"NIM0406336","token_address":"0x2fbeddb4b90aa6e4f0c995916a5615139b58213f","type":"artist","uuid":"2dd4f8c8-5118-46da-93eb-539c4fe7af15"}
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 0x95695646fe8886cefeadb7191853be272461a81098f34df606a339aea78efd21. 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/2dd4f8c8-5118-46da-93eb-539c4fe7af15.json and https://artists.proofprofile.net/proofs/artist/2dd4f8c8-5118-46da-93eb-539c4fe7af15.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0x95695646fe8886cefeadb7191853be272461a81098f34df606a339aea78efd21","name":"Letícia e Vanessa","registered_at":"2026-06-14T09:12:48Z","symbol":"NIM0406336","token_address":"0x2fbeddb4b90aa6e4f0c995916a5615139b58213f","type":"artist","uuid":"2dd4f8c8-5118-46da-93eb-539c4fe7af15"}
album: Minhas Raizes Acústico
  type: MusicAlbum
  date published: 2017-11-23
album: Não Vai Ser Patrão
  type: MusicAlbum
  date published: 2019-04-05
album: Acabou a Gente
  type: MusicAlbum
  date published: 2021-01-29
album: Vai Lembrar de Mim
  type: MusicAlbum
  date published: 2021-09-03
album: Menina de Rua
  type: MusicAlbum
  date published: 2022-11-18
album: Coração na mão (Acústico)
  type: MusicAlbum
  date published: 2023-06-23
album: Ficante Emocionada
  type: MusicAlbum
  date published: 2023-09-15
album: SOS
  type: MusicAlbum
  date published: 2024-02-02
  track: SOS
    type: MusicRecording
    duration: PT2M41S
    duration ms: 161073
    explicit: false
    by artist: Letícia e Vanessa
    in album: SOS
      type: MusicAlbum
      date published: 2024-02-02
    isrc code: BX29W2300005
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T15:52:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x495528316ff2fcf3be4b63086c0f5dfcd5cf4d498ae2b0107f78bfbd8e3d2207
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958436
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958436
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX29W2300005
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T16:42:22Z
    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 0x495528316ff2fcf3be4b63086c0f5dfcd5cf4d498ae2b0107f78bfbd8e3d2207. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX29W2300005 — a six-check JSON result.
      date published: 2026-07-17T16:42:22Z
    audio: SOS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.965
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.595
      additional property: Energy
        type: PropertyValue
        value: 0.86
      additional property: Speechiness
        type: PropertyValue
        value: 0.154
      additional property: Acousticness
        type: PropertyValue
        value: 0.572
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.963
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.03
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Onlinezinho
  type: MusicAlbum
  date published: 2024-06-14
  track: Onlinezinho
    type: MusicRecording
    duration: PT2M40S
    duration ms: 160597
    explicit: false
    by artist: Letícia e Vanessa
    in album: Onlinezinho
      type: MusicAlbum
      date published: 2024-06-14
    isrc code: BX29W2300001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T11:12:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb086c56026b5480f4f7c6f88c6b216a430b9c746c6de2b43198276277dc8f603
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958870
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958870
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX29W2300001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:19:23Z
    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 0xb086c56026b5480f4f7c6f88c6b216a430b9c746c6de2b43198276277dc8f603. Chain 2 (Bitcoin): anchored in block 958870 (2026-07-20T11:19:23Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX29W2300001 — a six-check JSON result.
      date published: 2026-07-20T11:19:23Z
    audio: Onlinezinho
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 121.947
      additional property: Musical Key
        type: PropertyValue
        value: 3
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
      additional property: Energy
      additional property: Speechiness
      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: Recaída Marcada

Danceability
type: PropertyValue
value: 0.744

Energy
type: PropertyValue
value: 0.646

Speechiness
type: PropertyValue
value: 0.041

Acousticness
type: PropertyValue
value: 0.678

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.187

Valence (Positivity)
type: PropertyValue
value: 0.861

Loudness (dB)
type: PropertyValue
value: -4.501

Key Name
type: PropertyValue
value: Eb

Mode Name
type: PropertyValue
value: Minor

Recaída Marcada
type: MusicAlbum
date published: 2025-06-12