Maru Carvajal
type: MusicGroup
popularity: 6
followers: 307
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x66d38f60fd0a8a580f536355120608badda12db2bf73f73381cae95c16c4ffc9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/49b1413c-9a56-48b2-805d-b033d7574bc1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/49b1413c-9a56-48b2-805d-b033d7574bc1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/49b1413c-9a56-48b2-805d-b033d7574bc1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x66d38f60fd0a8a580f536355120608badda12db2bf73f73381cae95c16c4ffc9","name":"Maru Carvajal","registered_at":"2026-06-16T15:18:01Z","symbol":"NIM1092519","token_address":"0xaa9240cd07273b80a642ad9285911e89857ded33","type":"artist","uuid":"49b1413c-9a56-48b2-805d-b033d7574bc1"}
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 0x66d38f60fd0a8a580f536355120608badda12db2bf73f73381cae95c16c4ffc9. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/49b1413c-9a56-48b2-805d-b033d7574bc1.json and https://artists.proofprofile.net/proofs/artist/49b1413c-9a56-48b2-805d-b033d7574bc1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x66d38f60fd0a8a580f536355120608badda12db2bf73f73381cae95c16c4ffc9","name":"Maru Carvajal","registered_at":"2026-06-16T15:18:01Z","symbol":"NIM1092519","token_address":"0xaa9240cd07273b80a642ad9285911e89857ded33","type":"artist","uuid":"49b1413c-9a56-48b2-805d-b033d7574bc1"}
album: Anhelo
  type: MusicAlbum
  date published: 2019-11-15
album: Tanto Amor
  type: MusicAlbum
  date published: 2019-12-20
album: Santo Te Amo
  type: MusicAlbum
  date published: 2020-05-22
album: Salmo 9
  type: MusicAlbum
  date published: 2020-08-28
album: Como No
  type: MusicAlbum
  date published: 2021-03-26
  track: Como No
    type: MusicRecording
    duration: PT3M7S
    duration ms: 187547
    explicit: false
    by artist: Maru Carvajal
    in album: Como No
      type: MusicAlbum
      date published: 2021-03-26
    isrc code: FR26V2043700
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T10:26:52+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1d49c83de9fd43c84f87b9dfc72b9727d6307b448259bc21088374b3fc92e81c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR26V2043700
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x1d49c83de9fd43c84f87b9dfc72b9727d6307b448259bc21088374b3fc92e81c. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FR26V2043700.
      date published: 2026-07-05T18:48:28Z
    audio: Como No
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.016
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.718
      additional property: Energy
        type: PropertyValue
        value: 0.479
      additional property: Speechiness
        type: PropertyValue
        value: 0.065
      additional property: Acousticness
        type: PropertyValue
        value: 0.251
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.074
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.375
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.644
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ni Tibio
  type: MusicAlbum
  date published: 2022-02-11
  track: Ni Tibio
    type: MusicRecording
    duration: PT3M53S
    duration ms: 233666
    explicit: false
    by artist: Maru Carvajal
    in album: Ni Tibio
      type: MusicAlbum
      date published: 2022-02-11
    isrc code: USCGH2262626
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-06T02:44:09+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x481b4e9b632d422cfdd558a6442785f97cbcb2cff72b4768fbf7d5a7af43ae1b
    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/USCGH2262626
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x481b4e9b632d422cfdd558a6442785f97cbcb2cff72b4768fbf7d5a7af43ae1b. 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/USCGH2262626.
      date published: 2026-07-06T06:56:49Z
    audio: Ni Tibio
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.005
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.785
      additional property: Energy
        type: PropertyValue
        value: 0.868
      additional property: Speechiness
        type: PropertyValue
        value: 0.083
      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: Nadie
album: En Mi Ansiedad
album: Grandes Proezas
album: Y Vuelves
album: Historia de amor

Acousticness
type: PropertyValue
value: 0.206

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.165

Valence (Positivity)
type: PropertyValue
value: 0.609

Loudness (dB)
type: PropertyValue
value: -6.012

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Minor

Nadie
type: MusicAlbum
date published: 2022-05-27

En Mi Ansiedad
type: MusicAlbum
date published: 2023-06-23

Grandes Proezas
type: MusicAlbum
date published: 2023-10-06

Y Vuelves
type: MusicAlbum
date published: 2024-07-26

Historia de amor
type: MusicAlbum
date published: 2024-11-29