Ernesto Baffa
type: MusicGroup
genre: tango
popularity: 8
followers: 1315
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe929ccb0d4cce37666cd1eb5e48b4f6b1c85f9ad6f5777dd95ce04004fe7614d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954002
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954002
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/322c6820-b238-4ec8-90fd-2c77e6abc868.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/322c6820-b238-4ec8-90fd-2c77e6abc868.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/322c6820-b238-4ec8-90fd-2c77e6abc868
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:47:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe929ccb0d4cce37666cd1eb5e48b4f6b1c85f9ad6f5777dd95ce04004fe7614d","name":"Ernesto Baffa","registered_at":"2026-06-16T07:05:23Z","symbol":"NIM0974971","token_address":"0x750d225d9d686386bb32dd788acebbe5435a9af1","type":"artist","uuid":"322c6820-b238-4ec8-90fd-2c77e6abc868"}
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 0xe929ccb0d4cce37666cd1eb5e48b4f6b1c85f9ad6f5777dd95ce04004fe7614d. Chain 2 (Bitcoin): anchored in block 954002 (2026-06-16T20:47:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/322c6820-b238-4ec8-90fd-2c77e6abc868.json and https://artists.proofprofile.net/proofs/artist/322c6820-b238-4ec8-90fd-2c77e6abc868.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:47:12Z
  text: {"copyright_id":"0xe929ccb0d4cce37666cd1eb5e48b4f6b1c85f9ad6f5777dd95ce04004fe7614d","name":"Ernesto Baffa","registered_at":"2026-06-16T07:05:23Z","symbol":"NIM0974971","token_address":"0x750d225d9d686386bb32dd788acebbe5435a9af1","type":"artist","uuid":"322c6820-b238-4ec8-90fd-2c77e6abc868"}
album: Señero
  type: MusicAlbum
  date published: 1978-07-15
  track: Malena
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199226
    explicit: false
    by artist: Ernesto Baffa
    in album: Señero
      type: MusicAlbum
      date published: 1978-07-15
    genre: tango
    isrc code: ARF100100235
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-20T07:26:49+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc12529e929e4312af6e902593d8f58eee83b2db5287c0454a9d73fccd1150693
    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/ARF100100235
    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 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 0xc12529e929e4312af6e902593d8f58eee83b2db5287c0454a9d73fccd1150693. 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/ARF100100235.
      date published: 2026-07-05T10:01:46Z
    audio: Malena
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 114.02
      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: 0.553
      additional property: Energy
        type: PropertyValue
        value: 0.242
      additional property: Speechiness
        type: PropertyValue
        value: 0.041
      additional property: Acousticness
        type: PropertyValue
        value: 0.836
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.077
      additional property: Liveness
        type: PropertyValue
        value: 0.04
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.449
      additional property: Loudness (dB)
        type: PropertyValue
        value: -15.28
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Color de Tango
  type: MusicAlbum
  date published: 1979-02-11
album: Tango Sin Edad
  type: MusicAlbum
  date published: 1980-02-11
album: Cadeneando las Palabras
  type: MusicAlbum
  date published: 2003-07-07
album: Dos al Corazón
  type: MusicAlbum
  date published: 2003-09-09
album: Baffa de Buenos Aires
  type: MusicAlbum
  date published: 2006-12-12
album: Todo Corazón
  type: MusicAlbum
  date published: 2007-07-07
album: Buen Amigo
  type: MusicAlbum
  date published: 2009-09-09
album: Pa´que Aprenda el Caprichoso!
  type: MusicAlbum
  date published: 2012-03-03
track: Malena
  type: MusicRecording
  duration: PT3M18S
  duration ms: 198933
  explicit: false
  by artist: Ernesto Baffa
  in album: Nuestros 30 Mejores Tangos Instrumentales
    type: MusicAlbum
    date published: 2001-04-25
  isrc code: ARF100100235
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T07:26:49+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xc12529e929e4312af6e902593d8f58eee83b2db5287c0454a9d73fccd1150693
  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/ARF100100235
  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 0xc12529e929e4312af6e902593d8f58eee83b2db5287c0454a9d73fccd1150693. 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARF100100235.
    date published: 2026-07-02T03:30:09Z
  audio: Malena
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 127.462
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
    additional property: Danceability
    additional property: Energy
    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

Time Signature
type: PropertyValue
value: 5

Danceability
type: PropertyValue
value: 0.556

Energy
type: PropertyValue
value: 0.257

Speechiness
type: PropertyValue
value: 0.041

Acousticness
type: PropertyValue
value: 0.849

Instrumentalness
type: PropertyValue
value: 0.046

Liveness
type: PropertyValue
value: 0.044

Valence (Positivity)
type: PropertyValue
value: 0.487

Loudness (dB)
type: PropertyValue
value: -18.069

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Minor