Marianna Santos
type: MusicGroup
genre: lullaby
popularity: 19
followers: 43859
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd1595b70745a07753e35097660059246b05471dfc671748d2e863213e1458f7a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953645
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953645
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/400315a4-6776-4498-b670-e0b1b3fec57e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/400315a4-6776-4498-b670-e0b1b3fec57e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/400315a4-6776-4498-b670-e0b1b3fec57e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T14:31:42Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd1595b70745a07753e35097660059246b05471dfc671748d2e863213e1458f7a","name":"Marianna Santos","registered_at":"2026-06-14T11:15:28Z","symbol":"NIM0435605","token_address":"0x2c24f337b6910109e2f0b35cef789b10141eafd0","type":"artist","uuid":"400315a4-6776-4498-b670-e0b1b3fec57e"}
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 0xd1595b70745a07753e35097660059246b05471dfc671748d2e863213e1458f7a. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/400315a4-6776-4498-b670-e0b1b3fec57e.json and https://artists.proofprofile.net/proofs/artist/400315a4-6776-4498-b670-e0b1b3fec57e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0xd1595b70745a07753e35097660059246b05471dfc671748d2e863213e1458f7a","name":"Marianna Santos","registered_at":"2026-06-14T11:15:28Z","symbol":"NIM0435605","token_address":"0x2c24f337b6910109e2f0b35cef789b10141eafd0","type":"artist","uuid":"400315a4-6776-4498-b670-e0b1b3fec57e"}
album: Mundo Lindo
  type: MusicAlbum
  date published: 2017-02-15
  track: Mundo Lindo
    type: MusicRecording
    duration: PT3M23S
    duration ms: 203920
    explicit: false
    by artist: Marianna Santos
    in album: Mundo Lindo
      type: MusicAlbum
      date published: 2017-02-15
    genre: lullaby
    isrc code: BXE5L1700001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T21:37:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8852017cb9dcc4e454f5c25bd371270bd0ee19695afa44fb98980848136f5e50
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXE5L1700001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8852017cb9dcc4e454f5c25bd371270bd0ee19695afa44fb98980848136f5e50. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXE5L1700001.
      date published: 2026-07-06T01:25:57Z
    audio: Mundo Lindo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.006
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.778
      additional property: Energy
        type: PropertyValue
        value: 0.81
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.399
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.167
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.835
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.428
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Marianna Conta Um
  type: MusicAlbum
  date published: 2018-07-20
album: Bonde da Alegria
  type: MusicAlbum
  date published: 2018-07-27
album: Futuro Feliz
  type: MusicAlbum
  date published: 2019-12-10
  track: Futuro Feliz
    type: MusicRecording
    duration: PT3M55S
    duration ms: 235500
    explicit: false
    by artist: Marianna Santos
    in album: Futuro Feliz
      type: MusicAlbum
      date published: 2019-12-10
    genre: lullaby
    isrc code: QZHZ51954258
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-02T03:02:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x25f6639920093886253c41b11b309557ce27444725f7e02979a5d0fc8bed7157
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956375
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956375
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ51954258
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T16:51:38Z
    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 0x25f6639920093886253c41b11b309557ce27444725f7e02979a5d0fc8bed7157. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/QZHZ51954258.
      date published: 2026-07-02T16:51:38Z
    audio: Futuro Feliz
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.972
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.689
      additional property: Energy
        type: PropertyValue
        value: 0.722
      additional property: Speechiness
        type: PropertyValue
        value: 0.031
      additional property: Acousticness
        type: PropertyValue
        value: 0.367
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Passinho da Alegria
album: Dance

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.303

Valence (Positivity)
type: PropertyValue
value: 0.743

Loudness (dB)
type: PropertyValue
value: -5.349

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Passinho da Alegria
type: MusicAlbum
date published: 2019-12-13

Dance
type: MusicAlbum
date published: 2021-10-24