Sam Kardoso
type: MusicGroup
genre: brazilian evangelical music
popularity: 4
followers: 670
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa18f8f009d54c17705eb0bbca808a69c8b5004b6b3c034ce31c2bc345c981237
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1465130-7be2-44c1-961a-7580356d63cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1465130-7be2-44c1-961a-7580356d63cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b1465130-7be2-44c1-961a-7580356d63cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa18f8f009d54c17705eb0bbca808a69c8b5004b6b3c034ce31c2bc345c981237","name":"Sam Kardoso","registered_at":"2026-06-20T12:01:45Z","symbol":"NIM1608507","token_address":"0x93708f91b3ad8b1c83185db3ea62073c09ca6a3c","type":"artist","uuid":"b1465130-7be2-44c1-961a-7580356d63cf"}
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 0xa18f8f009d54c17705eb0bbca808a69c8b5004b6b3c034ce31c2bc345c981237. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1465130-7be2-44c1-961a-7580356d63cf.json and https://artists.proofprofile.net/proofs/artist/b1465130-7be2-44c1-961a-7580356d63cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0xa18f8f009d54c17705eb0bbca808a69c8b5004b6b3c034ce31c2bc345c981237","name":"Sam Kardoso","registered_at":"2026-06-20T12:01:45Z","symbol":"NIM1608507","token_address":"0x93708f91b3ad8b1c83185db3ea62073c09ca6a3c","type":"artist","uuid":"b1465130-7be2-44c1-961a-7580356d63cf"}
album: Maranata / Lágrimas de Fogo (Ao Vivo)
  type: MusicAlbum
  date published: 2019-05-05
album: Me Conectou (Ao Vivo)
  type: MusicAlbum
  date published: 2019-07-06
album: Amar Como Você Ama
  type: MusicAlbum
  date published: 2020-09-05
album: Próximas Estações
  type: MusicAlbum
  date published: 2020-12-23
album: Esperança
  type: MusicAlbum
  date published: 2021-01-02
album: Sempre Esteve Aqui
  type: MusicAlbum
  date published: 2021-05-07
album: Que Seja em Teus Braços
  type: MusicAlbum
  date published: 2023-02-14
album: Pra Sempre Te Amarei
  type: MusicAlbum
  date published: 2023-06-15
album: Eu Não era nada
  type: MusicAlbum
  date published: 2024-01-19
album: Você Olhou Pra Mim
  type: MusicAlbum
  date published: 2025-02-28
album: Quero Te Ver
  type: MusicAlbum
  date published: 2025-03-28
  track: Quero Te Ver
    type: MusicRecording
    duration: PT6M0S
    duration ms: 360624
    explicit: false
    by artist: Sam Kardoso
    in album: Quero Te Ver
      type: MusicAlbum
      date published: 2025-03-28
    genre: brazilian evangelical music
    isrc code: BX6OQ2500003
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:11:30+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7f6d194a50c7e81595374f220c14f9547b1505052a798515bfbb4e35f89b77f9
    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/BX6OQ2500003
    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 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 0x7f6d194a50c7e81595374f220c14f9547b1505052a798515bfbb4e35f89b77f9. 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/BX6OQ2500003.
      date published: 2026-07-04T10:04:33Z
    audio: Quero Te Ver
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.025
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.351
      additional property: Energy
        type: PropertyValue
        value: 0.493
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.32
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.434
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.177
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.983
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Me Conectou (Ao Vivo)
  type: MusicAlbum
  date published: 2025-04-25
album: Só Tu És O Alfa
  type: MusicAlbum
  date published: 2025-05-30
  track: Só Tu És O Alfa
    type: MusicRecording
    duration: PT8M19S
    duration ms: 499777
    explicit: false
    by artist: Sam Kardoso
    in album: Só Tu És O Alfa
      type: MusicAlbum
      date published: 2025-05-30
    genre: brazilian evangelical music
    isrc code: BX6OQ2500002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T22:11:55+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x60b765ba240a2825f2ddc426d4cb315745ec6bf6c01c5ef5ab5a10afbb55ff51
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956420
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956420
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX6OQ2500002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T00:42:11Z
    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 0x60b765ba240a2825f2ddc426d4cb315745ec6bf6c01c5ef5ab5a10afbb55ff51. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/BX6OQ2500002.
      date published: 2026-07-03T00:42:11Z
    audio: Só Tu És O Alfa

Só Tu És O Alfa
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 134.913
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: 0.46
additional property: Energy
  type: PropertyValue
  value: 0.693
additional property: Speechiness
  type: PropertyValue
  value: 0.038
additional property: Acousticness
  type: PropertyValue
  value: 0.027
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.353
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.274
additional property: Loudness (dB)
  type: PropertyValue
  value: -8.437
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major