sandro cesar
type: MusicGroup
genre: agronejo
genre: forró
genre: piseiro
genre: seresta
popularity: 27
followers: 375
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x082b9a6833160576582b04d9d53f9e5e2ef23f5b92e273caf588fd670900f733
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91f94d68-d9cb-4e07-8066-288265023e56.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91f94d68-d9cb-4e07-8066-288265023e56.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/91f94d68-d9cb-4e07-8066-288265023e56
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x082b9a6833160576582b04d9d53f9e5e2ef23f5b92e273caf588fd670900f733","name":"sandro cesar","registered_at":"2026-06-12T04:37:54Z","symbol":"NIM0189074","token_address":"0xe8ad03cbdb0a43d94036fecaaf6704f05028edf3","type":"artist","uuid":"91f94d68-d9cb-4e07-8066-288265023e56"}
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 0x082b9a6833160576582b04d9d53f9e5e2ef23f5b92e273caf588fd670900f733. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91f94d68-d9cb-4e07-8066-288265023e56.json and https://artists.proofprofile.net/proofs/artist/91f94d68-d9cb-4e07-8066-288265023e56.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-12T19:24:56Z
  text: {"copyright_id":"0x082b9a6833160576582b04d9d53f9e5e2ef23f5b92e273caf588fd670900f733","name":"sandro cesar","registered_at":"2026-06-12T04:37:54Z","symbol":"NIM0189074","token_address":"0xe8ad03cbdb0a43d94036fecaaf6704f05028edf3","type":"artist","uuid":"91f94d68-d9cb-4e07-8066-288265023e56"}
album: Rosana
  type: MusicAlbum
  date published: 2021-05-08
album: Rosana
  type: MusicAlbum
  date published: 2021-05-08
album: Na Farra e na Sofrência
  type: MusicAlbum
  date published: 2021-05-20
album: Cadeia Nele
  type: MusicAlbum
  date published: 2021-07-26
album: Cadeia Nele
  type: MusicAlbum
  date published: 2021-07-26
album: Boiadeiro Sessions
  type: MusicAlbum
  date published: 2023-11-17
  track: Gado Romântico (Fiduma Égua)
    type: MusicRecording
    duration: PT2M45S
    duration ms: 165637
    explicit: false
    by artist: sandro cesar
    in album: Boiadeiro Sessions
      type: MusicAlbum
      date published: 2023-11-17
    genre: agronejo
    genre: forró
    genre: piseiro
    genre: seresta
    isrc code: BK4DA2321432
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-14T19:46:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x9d2191f8d2e51dee25abb8b7f7e4dcb65bed07cddc17d7e9933153d0d0e03c06
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958058
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958058
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK4DA2321432
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-14T20:20:34Z
    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 0x9d2191f8d2e51dee25abb8b7f7e4dcb65bed07cddc17d7e9933153d0d0e03c06. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/BK4DA2321432 — a six-check JSON result.
      date published: 2026-07-14T20:20:34Z
    audio: Gado Romântico (Fiduma Égua)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 127.937
      additional property: Musical Key
        type: PropertyValue
        value: 10
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.845
      additional property: Energy
        type: PropertyValue
        value: 0.826
      additional property: Speechiness
        type: PropertyValue
        value: 0.112
      additional property: Acousticness
        type: PropertyValue
        value: 0.604
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.588
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.928
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.581
      additional property: Key Name
        type: PropertyValue
        value: Bb
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Ou Ele Ou Eu
    type: MusicRecording
    duration: PT2M59S
    duration ms: 179886
    explicit: false
    by artist: sandro cesar
    in album: Boiadeiro Sessions
      type: MusicAlbum
      date published: 2023-11-17
    genre: agronejo
    genre: forró
    genre: piseiro
    genre: seresta
    isrc code: BK4DA2321434
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T03:03:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe1d8065fcb338869213f5c0c756ee2d59ab335eaf18d63f5eb17379f089786b2
    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/BK4DA2321434
    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 0xe1d8065fcb338869213f5c0c756ee2d59ab335eaf18d63f5eb17379f089786b2. 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BK4DA2321434 — a six-check JSON result.
      date published: 2026-07-04T10:04:33Z
    audio: Ou Ele Ou Eu
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 75.953
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
      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: Jussara
album: Alô Mãe

Time Signature
type: PropertyValue
value: 4

Danceability
type: PropertyValue
value: 0.604

Energy
type: PropertyValue
value: 0.819

Speechiness
type: PropertyValue
value: 0.05

Acousticness
type: PropertyValue
value: 0.53

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.323

Valence (Positivity)
type: PropertyValue
value: 0.753

Loudness (dB)
type: PropertyValue
value: -3.945

Key Name
type: PropertyValue
value: C#

Mode Name
type: PropertyValue
value: Major

Jussara
type: MusicAlbum
date published: 2025-01-24

Alô Mãe
type: MusicAlbum
date published: 2025-02-28