Francisco Halbach
type: MusicGroup
genre: argentine rock
genre: tango
popularity: 12
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xdb9cfb05c5b9163be2e353676893343d0141edfb8be0bed4bca519cd7e9fc4c1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953758
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953758
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af619864-543f-40c0-8c43-5d20fd488144.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/af619864-543f-40c0-8c43-5d20fd488144.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/af619864-543f-40c0-8c43-5d20fd488144
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T07:48:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xdb9cfb05c5b9163be2e353676893343d0141edfb8be0bed4bca519cd7e9fc4c1","name":"Francisco Halbach","registered_at":"2026-06-14T23:01:42Z","symbol":"NIM0604066","token_address":"0x53e57d603137cbad98727e0ea08b887e5450a1f3","type":"artist","uuid":"af619864-543f-40c0-8c43-5d20fd488144"}
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 0xdb9cfb05c5b9163be2e353676893343d0141edfb8be0bed4bca519cd7e9fc4c1. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/af619864-543f-40c0-8c43-5d20fd488144.json and https://artists.proofprofile.net/proofs/artist/af619864-543f-40c0-8c43-5d20fd488144.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T07:48:25Z
  text: {"copyright_id":"0xdb9cfb05c5b9163be2e353676893343d0141edfb8be0bed4bca519cd7e9fc4c1","name":"Francisco Halbach","registered_at":"2026-06-14T23:01:42Z","symbol":"NIM0604066","token_address":"0x53e57d603137cbad98727e0ea08b887e5450a1f3","type":"artist","uuid":"af619864-543f-40c0-8c43-5d20fd488144"}
track: Adiós (feat. Rafael Varela, Luis Volcoff, Pablo Márquez, Francisco Halbach & Valentín Andersen)
  type: MusicRecording
  duration: PT3M57S
  duration ms: 237813
  explicit: false
  by artist: Adriana Varela
  by artist: Rafael Varela
  by artist: Luis Volcoff
  by artist: Pablo Márquez
  by artist: Francisco Halbach
  by artist: Valentín Andersen
  in album: Avellaneda
    type: MusicAlbum
    date published: 2017-08-04
  genre: tango
  isrc code: ARG601700126
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T17:01:36+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0351c8733946d5117a30737f94508eaaa37dc8ec0208c258473ac0bbdc7e37bb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960284
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960284
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ARG601700126
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T17:23:26Z
  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 0x0351c8733946d5117a30737f94508eaaa37dc8ec0208c258473ac0bbdc7e37bb. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/ARG601700126.
    date published: 2026-07-30T17:23:26Z
  audio: Adiós (feat. Rafael Varela, Luis Volcoff, Pablo Márquez, Francisco Halbach & Valentín Andersen)
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 108.497
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.567
    additional property: Energy
      type: PropertyValue
      value: 0.368
    additional property: Speechiness
      type: PropertyValue
      value: 0.026
    additional property: Acousticness
      type: PropertyValue
      value: 0.785
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.098
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.258
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.944
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major