Lennie Dale
type: MusicGroup
genre: bossa nova
genre: brazilian jazz
genre: mpb
description: Leonardo La Ponzina, better known as Lennie Dale (July 21, 1937 – August 9, 1994) was an American-Brazilian choreographer, dancer, actor, and singer of Italian background. Biography Dale was born o
popularity: 3
followers: 648
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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additional property: OTSCanonicalRecord
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x921c23e61e763a7df012b1b4db07b25a5606609f7991f85a5ddf3e81ca110b0a. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8ae80834-1cdb-4831-b5f7-50924adc20f6.json and https://artists.proofprofile.net/proofs/artist/8ae80834-1cdb-4831-b5f7-50924adc20f6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x921c23e61e763a7df012b1b4db07b25a5606609f7991f85a5ddf3e81ca110b0a","name":"Lennie Dale","registered_at":"2026-06-17T14:09:00Z","symbol":"NIM1419488","token_address":"0x21b20862926a5978397e64ed63921e0d6a473897","type":"artist","uuid":"8ae80834-1cdb-4831-b5f7-50924adc20f6"}
album: Um Show de Bossa (Doxy Collection Remastered)
  type: MusicAlbum
  date published: 2014-11-21
album: Simplesmente
  type: MusicAlbum
  date published: 2023-03-10
track: Samba do Avião
  type: MusicRecording
  duration: PT2M25S
  duration ms: 145173
  explicit: false
  by artist: Elis Regina
  by artist: Lennie Dale
  by artist: Luiz Loy Trio
  in album: No Fino da Bossa, Vol. 1 (Ao Vivo)
    type: MusicAlbum
    date published: 1994
  isrc code: BRVLS9400588
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRVLS9400588
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x68262a15fa64db93177cb64c859e67cb21d91a5b389d635a13170eb75ad67179. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/BRVLS9400588.
    date published: 2026-07-08T03:20:19Z
  audio: Samba do Avião
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
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      value: 5
    additional property: Danceability
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    additional property: Energy
      type: PropertyValue
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
      type: PropertyValue
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    additional property: Loudness (dB)
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      value: -15.663
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
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track: O Pato
  type: MusicRecording
  duration: PT1M55S
  duration ms: 115871
  explicit: false
  by artist: Lennie Dale
  by artist: Sambalanço Trio
  in album: Elis (Trilha Sonora Original Do Filme)
    type: MusicAlbum
    date published: 2016-11-25
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  additional property: OTSVerificationAPI
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  additional property: OTSTimestamp
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  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 0xdc2a9712caada00df4eac2a13c13a67db70ec0278507efe6e4483bd2c45f9e85. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/BRMCA6500191.
    date published: 2026-07-02T03:55:08Z
  audio: O Pato
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    additional property: Tempo (BPM)
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    additional property: Time Signature
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    additional property: Danceability
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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      value: 0.377
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.036

Valence (Positivity)
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value: 0.912

Loudness (dB)
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value: -15.94

Key Name
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value: F

Mode Name
type: PropertyValue
value: Major