Leonel Figueiredo
type: MusicGroup
popularity: 8
followers: 932
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x887b6ccff2706638ce6cbc14f4f5c42e532bef522ab058b5ea8a8b172a284f84
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/fc0a0b9b-e9e4-441e-9afe-358cfb78fc2a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fc0a0b9b-e9e4-441e-9afe-358cfb78fc2a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fc0a0b9b-e9e4-441e-9afe-358cfb78fc2a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T18:08:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x887b6ccff2706638ce6cbc14f4f5c42e532bef522ab058b5ea8a8b172a284f84","name":"Leonel Figueiredo","registered_at":"2026-06-21T17:07:03Z","symbol":"NIM1982614","token_address":"0xd6a4e9275aed790186e6cfadac04ba530f6e1cb3","type":"artist","uuid":"fc0a0b9b-e9e4-441e-9afe-358cfb78fc2a"}
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 0x887b6ccff2706638ce6cbc14f4f5c42e532bef522ab058b5ea8a8b172a284f84. 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/fc0a0b9b-e9e4-441e-9afe-358cfb78fc2a.json and https://artists.proofprofile.net/proofs/artist/fc0a0b9b-e9e4-441e-9afe-358cfb78fc2a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T18:08:38Z
  text: {"copyright_id":"0x887b6ccff2706638ce6cbc14f4f5c42e532bef522ab058b5ea8a8b172a284f84","name":"Leonel Figueiredo","registered_at":"2026-06-21T17:07:03Z","symbol":"NIM1982614","token_address":"0xd6a4e9275aed790186e6cfadac04ba530f6e1cb3","type":"artist","uuid":"fc0a0b9b-e9e4-441e-9afe-358cfb78fc2a"}
album: À Desgarrada por Terras de Portugal
  type: MusicAlbum
  date published: 2000
  track: Em Terras de Portugal
    type: MusicRecording
    duration: PT3M34S
    duration ms: 214392
    explicit: false
    by artist: Leonel Figueiredo
    in album: À Desgarrada por Terras de Portugal
      type: MusicAlbum
      date published: 2000
    isrc code: PTTO10011001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T07:49:47+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7a8219766a5922bf7fbf2fbf0824089ab6b4ccd4b0ba16763d322f4ecb33eb5c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956476
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956476
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTTO10011001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T09:04:44Z
    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 0x7a8219766a5922bf7fbf2fbf0824089ab6b4ccd4b0ba16763d322f4ecb33eb5c. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/PTTO10011001.
      date published: 2026-07-03T09:04:44Z
    audio: Em Terras de Portugal
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.957
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.732
      additional property: Energy
        type: PropertyValue
        value: 0.593
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.276
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.087
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.932
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.86
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Portugal Meu Coração
  type: MusicAlbum
  date published: 2001-08-03
album: Português Que Regressa
  type: MusicAlbum
  date published: 2002-06-14
album: Hoje Há Festa Na Aldeia
  type: MusicAlbum
  date published: 2003-07-25
album: Bacalhau da Maria
  type: MusicAlbum
  date published: 2004-06-04
album: Dançar o Vira, Vira
  type: MusicAlbum
  date published: 2005-07-29
  track: Ora Beija, Beija
    type: MusicRecording
    duration: PT3M48S
    duration ms: 228426
    explicit: false
    by artist: Leonel Figueiredo
    in album: Dançar o Vira, Vira
      type: MusicAlbum
      date published: 2005-07-29
    isrc code: PTES10505808
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T06:45:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7db55acbd8cbc1ef0399f8f1f4a74ae8b786c629c92aab60652e1988200b6ae2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958980
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958980
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTES10505808
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T07:04:12Z
    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 0x7db55acbd8cbc1ef0399f8f1f4a74ae8b786c629c92aab60652e1988200b6ae2. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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/PTES10505808.
      date published: 2026-07-21T07:04:12Z
    audio: Ora Beija, Beija
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 94.014
      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: 0.676
      additional property: Energy
        type: PropertyValue
        value: 0.914
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      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: O Melhor De
album: Desgarrada de Portugal
album: Bobiou a Gente Pimba

Acousticness
type: PropertyValue
value: 0.012

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.057

Valence (Positivity)
type: PropertyValue
value: 0.955

Loudness (dB)
type: PropertyValue
value: -4.392

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

O Melhor De
type: MusicAlbum
date published: 2006-06-09

Desgarrada de Portugal
type: MusicAlbum
date published: 2008-07-04

O Melhor De
type: MusicAlbum
date published: 2009-07-20

Bobiou a Gente Pimba
type: MusicAlbum
date published: 2010