Maria Catherine
type: MusicGroup
popularity: 11
followers: 304
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x11a719643ed6f35f79aa0cf0c6f306dcbddbf2c97550ff20f5eb625de1636f39
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f828fd35-6d89-424e-90db-b090cd92ed5b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f828fd35-6d89-424e-90db-b090cd92ed5b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f828fd35-6d89-424e-90db-b090cd92ed5b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x11a719643ed6f35f79aa0cf0c6f306dcbddbf2c97550ff20f5eb625de1636f39","name":"Maria Catherine","registered_at":"2026-06-15T06:39:35Z","symbol":"NIM0713411","token_address":"0x6f1780871a490865ebdf912a9ce092b87357408a","type":"artist","uuid":"f828fd35-6d89-424e-90db-b090cd92ed5b"}
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 0x11a719643ed6f35f79aa0cf0c6f306dcbddbf2c97550ff20f5eb625de1636f39. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f828fd35-6d89-424e-90db-b090cd92ed5b.json and https://artists.proofprofile.net/proofs/artist/f828fd35-6d89-424e-90db-b090cd92ed5b.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x11a719643ed6f35f79aa0cf0c6f306dcbddbf2c97550ff20f5eb625de1636f39","name":"Maria Catherine","registered_at":"2026-06-15T06:39:35Z","symbol":"NIM0713411","token_address":"0x6f1780871a490865ebdf912a9ce092b87357408a","type":"artist","uuid":"f828fd35-6d89-424e-90db-b090cd92ed5b"}
album: Todo Dia é um Bom Dia
  type: MusicAlbum
  date published: 2024-10-18
track: Bondade de Deus - Ao Vivo
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249536
  explicit: false
  by artist: Aline Barros
  by artist: ImaginAline
  by artist: Maria Catherine
  in album: ImaginAline - Uma Viagem no Tempo (Ao Vivo)
    type: MusicAlbum
    date published: 2024-10-01
  genre: worship
  genre: gospel
  genre: children-s-music
  genre: lullaby
  genre: brazilian-evangelical-music
  genre: pentecostal
  isrc code: BXBKK2400092
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-18T16:37:09+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4b405fdc7d30f3d11c638e296de935ac4b258672de0e902216f7536702091f54
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXBKK2400092
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 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 0x4b405fdc7d30f3d11c638e296de935ac4b258672de0e902216f7536702091f54. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXBKK2400092 — a six-check JSON result.
    date published: 2026-07-02T03:30:09Z
  audio: Bondade de Deus - Ao Vivo
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 136.709
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.522
    additional property: Energy
      type: PropertyValue
      value: 0.404
    additional property: Speechiness
      type: PropertyValue
      value: 0.034
    additional property: Acousticness
      type: PropertyValue
      value: 0.685
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.9
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.265
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.034
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Bondade de Deus - Playback
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249536
  explicit: false
  by artist: Aline Barros
  by artist: ImaginAline
  by artist: Maria Catherine
  in album: Imaginaline - Uma Viagem no Tempo (Playback)
    type: MusicAlbum
    date published: 2024-09-30
  genre: worship
  genre: gospel
  genre: children-s-music
  genre: lullaby
  genre: brazilian-evangelical-music
  genre: pentecostal
  isrc code: QZTVM2473804
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T06:59:37+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x4063f9aced1856082adb9a3dd0cad797c315c75fa659baf3712bafa59b77a970
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956995
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956995
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZTVM2473804
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-07T04:27:57Z
  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 0x4063f9aced1856082adb9a3dd0cad797c315c75fa659baf3712bafa59b77a970. Chain 2 (Bitcoin): anchored in block 956995 (2026-07-07T04:27:57Z), 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/QZTVM2473804 — a six-check JSON result.
    date published: 2026-07-07T04:27:57Z
  audio: Bondade de Deus - Playback
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 137.028
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.594
    additional property: Energy
      type: PropertyValue
      value: 0.298
    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: 0.031

Acousticness
type: PropertyValue
value: 0.55

Instrumentalness
type: PropertyValue
value: 0.906

Liveness
type: PropertyValue
value: 0.087

Valence (Positivity)
type: PropertyValue
value: 0.086

Loudness (dB)
type: PropertyValue
value: -20.287

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major