Carmen Aciar
type: MusicGroup
genre: acoustic folk
popularity: 6
followers: 765
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4f4d068332c92810d2e50461f829ebb8789ccfe6e16c91c9c34c6830dee29ebc
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953846
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953846
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00df7f8e-cc91-4e04-a974-699fde167a9a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/00df7f8e-cc91-4e04-a974-699fde167a9a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/00df7f8e-cc91-4e04-a974-699fde167a9a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T22:48:34Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4f4d068332c92810d2e50461f829ebb8789ccfe6e16c91c9c34c6830dee29ebc","name":"Carmen Aciar","registered_at":"2026-06-15T13:50:28Z","symbol":"NIM0727924","token_address":"0xd0de41a74d222e90a05584428eeee7b4bf83c498","type":"artist","uuid":"00df7f8e-cc91-4e04-a974-699fde167a9a"}
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 0x4f4d068332c92810d2e50461f829ebb8789ccfe6e16c91c9c34c6830dee29ebc. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/00df7f8e-cc91-4e04-a974-699fde167a9a.json and https://artists.proofprofile.net/proofs/artist/00df7f8e-cc91-4e04-a974-699fde167a9a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0x4f4d068332c92810d2e50461f829ebb8789ccfe6e16c91c9c34c6830dee29ebc","name":"Carmen Aciar","registered_at":"2026-06-15T13:50:28Z","symbol":"NIM0727924","token_address":"0xd0de41a74d222e90a05584428eeee7b4bf83c498","type":"artist","uuid":"00df7f8e-cc91-4e04-a974-699fde167a9a"}
album: Alma
  type: MusicAlbum
  date published: 2022-02-03
album: Carmen Aciar
  type: MusicAlbum
  date published: 2022-03-04
album: Ella
  type: MusicAlbum
  date published: 2022-03-11
album: Siempre Lo Hiciste
  type: MusicAlbum
  date published: 2023-10-01
album: Historias Mías
  type: MusicAlbum
  date published: 2023-10-20
  track: Siempre Lo Hiciste
    type: MusicRecording
    duration: PT3M4S
    duration ms: 184506
    explicit: false
    by artist: Carmen Aciar
    in album: Historias Mías
      type: MusicAlbum
      date published: 2023-10-20
    genre: acoustic folk
    isrc code: USL4Q2337444
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T10:04:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xb2ee29a809a0bb3bb4c47067e5265e88ebbd09ba3224fc31760df2eaae467899
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4Q2337444
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0xb2ee29a809a0bb3bb4c47067e5265e88ebbd09ba3224fc31760df2eaae467899. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/USL4Q2337444.
      date published: 2026-07-05T10:01:46Z
    audio: Siempre Lo Hiciste
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 124.627
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.74
      additional property: Energy
        type: PropertyValue
        value: 0.224
      additional property: Speechiness
        type: PropertyValue
        value: 0.038
      additional property: Acousticness
        type: PropertyValue
        value: 0.927
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.002
      additional property: Liveness
        type: PropertyValue
        value: 0.106
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.235
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.618
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Spinettalandia y Sus Amigas (En Vivo Casa Astor)
  type: MusicAlbum
  date published: 2024-09-20