Cezinha Oliveira
type: MusicGroup
genre: samba
popularity: 3
followers: 52
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8bcb2b6945396daa25972c3bd34e620d34492ab5ba1940151930d210ca6ca652
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954017
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954017
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35b51046-1ca3-4139-a0be-b7ac898c06cd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/35b51046-1ca3-4139-a0be-b7ac898c06cd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/35b51046-1ca3-4139-a0be-b7ac898c06cd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T23:38:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8bcb2b6945396daa25972c3bd34e620d34492ab5ba1940151930d210ca6ca652","name":"Cezinha Oliveira","registered_at":"2026-06-16T08:20:29Z","symbol":"NIM0992909","token_address":"0xfe37a99c84db77046387c2f1770ff362c6be2a34","type":"artist","uuid":"35b51046-1ca3-4139-a0be-b7ac898c06cd"}
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 0x8bcb2b6945396daa25972c3bd34e620d34492ab5ba1940151930d210ca6ca652. Chain 2 (Bitcoin): anchored in block 954017 (2026-06-16T23:38:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/35b51046-1ca3-4139-a0be-b7ac898c06cd.json and https://artists.proofprofile.net/proofs/artist/35b51046-1ca3-4139-a0be-b7ac898c06cd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T23:38:33Z
  text: {"copyright_id":"0x8bcb2b6945396daa25972c3bd34e620d34492ab5ba1940151930d210ca6ca652","name":"Cezinha Oliveira","registered_at":"2026-06-16T08:20:29Z","symbol":"NIM0992909","token_address":"0xfe37a99c84db77046387c2f1770ff362c6be2a34","type":"artist","uuid":"35b51046-1ca3-4139-a0be-b7ac898c06cd"}
album: Cezinha Oliveira
  type: MusicAlbum
  date published: 2003-04-29
album: Pele Morena
  type: MusicAlbum
  date published: 2021-03-18
track: Não Era Assim
  type: MusicRecording
  duration: PT3M21S
  duration ms: 201333
  explicit: false
  by artist: Eduardo Gudin
  by artist: Notícias Dum Brasil
  by artist: Cezinha Oliveira
  by artist: Theo de Barros
  in album: Eduardo Gudin & Notícias Dum Brasil 4
    type: MusicAlbum
    date published: 2015-03-01
  genre: choro
  genre: samba
  genre: samba-paulista
  genre: velha-guarda
  isrc code: BRDPA1500010
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T20:04:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf006a555b674e4dfe6277103489adb21263f4a859fb65a1051b5709791514caf
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 957118
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/957118
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRDPA1500010
  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
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf006a555b674e4dfe6277103489adb21263f4a859fb65a1051b5709791514caf. 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/BRDPA1500010.
    date published: 2026-07-08T03:20:19Z
  audio: Não Era Assim
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 121.067
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.692
    additional property: Energy
      type: PropertyValue
      value: 0.216
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.937
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.106
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.158
    additional property: Loudness (dB)
      type: PropertyValue
      value: -16.684
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: Dó Ré Mi
  type: MusicRecording
  duration: PT5M23S
  duration ms: 323588
  explicit: false
  by artist: Edie
  by artist: Cesinha Oliveira
  by artist: Mano Reco
  by artist: Cezinha Oliveira
  in album: Ganhar o Mundo e Perder a Alma
    type: MusicAlbum
    date published: 2021-09-10
  genre: christian-hip-hop
  genre: brazilian-hip-hop
  isrc code: BRU0N1900034
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T04:06:33+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xd23184e6bf83834daeb53499aeb483456c04f4990654348e100fce67325dc34f
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956889
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRU0N1900034
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  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 0xd23184e6bf83834daeb53499aeb483456c04f4990654348e100fce67325dc34f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRU0N1900034.
    date published: 2026-07-06T06:56:49Z
  audio: Dó Ré Mi
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 101.01
    additional property: Musical Key
      type: PropertyValue
      value: 5
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.745
    additional property: Energy
      type: PropertyValue
      value: 0.654
    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: 0.368

Acousticness
type: PropertyValue
value: 0.531

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.563

Valence (Positivity)
type: PropertyValue
value: 0.7

Loudness (dB)
type: PropertyValue
value: -10.147

Key Name
type: PropertyValue
value: F

Mode Name
type: PropertyValue
value: Minor