Sam Leal
type: MusicGroup
genre: brazilian evangelical music
description: Sam Leal is a former men's basketball player and current head coach at Wartburg College in Waverly, Iowa. Playing career Sam Leal played college basketball at UMF in Farmington, Maine. In his junior
popularity: 5
followers: 133
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x06a445fdc20a539034aa06cba1b7e169850c12e8d9634a2729836e3885bdceb8
additional property: OTSHash
additional property: OTSBitcoinBlock
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  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
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additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b673216c-595d-4c4c-a49a-e764a7f09bd6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b673216c-595d-4c4c-a49a-e764a7f09bd6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
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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 0x06a445fdc20a539034aa06cba1b7e169850c12e8d9634a2729836e3885bdceb8. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b673216c-595d-4c4c-a49a-e764a7f09bd6.json and https://artists.proofprofile.net/proofs/artist/b673216c-595d-4c4c-a49a-e764a7f09bd6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
  text: {"copyright_id":"0x06a445fdc20a539034aa06cba1b7e169850c12e8d9634a2729836e3885bdceb8","name":"Sam Leal","registered_at":"2026-06-20T15:18:20Z","symbol":"NIM1638867","token_address":"0xacd33408b5b094fa69a7b438e0bcf34386292fdf","type":"artist","uuid":"b673216c-595d-4c4c-a49a-e764a7f09bd6"}
album: Não Há Lugar Melhor
  type: MusicAlbum
  date published: 2022-05-20
album: Aos Teus Pés
  type: MusicAlbum
  date published: 2022-05-20
album: Não Temerei
  type: MusicAlbum
  date published: 2022-07-11
album: Santo
  type: MusicAlbum
  date published: 2024-08-20
  track: Santo
    type: MusicRecording
    duration: PT5M5S
    duration ms: 305966
    explicit: false
    by artist: Sam Leal
    in album: Santo
      type: MusicAlbum
      date published: 2024-08-20
    genre: brazilian evangelical music
    isrc code: BCWX62400013
    additional property: CopyrightID
    additional property: CopyrightStatus
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      value: registered
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      type: PropertyValue
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    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCWX62400013
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T07:22:16Z
    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 0x77715217424113667a557367f1cdc28fd3b5f27264c1379d42fcba66dbf6ee31. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:22:16Z), 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/BCWX62400013.
      date published: 2026-07-16T07:22:16Z
    audio: Santo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 136.039
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.38
      additional property: Energy
        type: PropertyValue
        value: 0.54
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.599
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.153
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.211
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Maranata
  type: MusicAlbum
  date published: 2025-04-18
  track: Maranata
    type: MusicRecording
    duration: PT4M36S
    duration ms: 276000
    explicit: false
    by artist: Sam Leal
    in album: Maranata
      type: MusicAlbum
      date published: 2025-04-18
    genre: brazilian evangelical music
    isrc code: BCWX62500001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958761
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCWX62500001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T20:10:09Z
    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 0x8f8c7213c8c200734ab3ea2b4a189de7057cf52890d7fde989424a4c7ffacdaa. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T20:10:09Z), 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/BCWX62500001.
      date published: 2026-07-19T20:10:09Z
    audio: Maranata
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 139.896
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.43
      additional property: Energy
        type: PropertyValue
        value: 0.545
      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

Speechiness
type: PropertyValue
value: 0.028

Acousticness
type: PropertyValue
value: 0.02

Instrumentalness
type: PropertyValue
value: 0.002

Liveness
type: PropertyValue
value: 0.119

Valence (Positivity)
type: PropertyValue
value: 0.118

Loudness (dB)
type: PropertyValue
value: -8.772

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major