Alejandro Schwarz
type: MusicGroup
genre: tango
popularity: 10
followers: 11
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a39fc1776bdc3690f86a6e34bfd80b68d892babef7a6836c69975c97efef5a3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/5e860e33-7f53-43ce-9dc6-81907f834c47.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e860e33-7f53-43ce-9dc6-81907f834c47.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5e860e33-7f53-43ce-9dc6-81907f834c47
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
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  value: {"copyright_id":"0x1a39fc1776bdc3690f86a6e34bfd80b68d892babef7a6836c69975c97efef5a3","name":"Alejandro Schwarz","registered_at":"2026-06-16T22:37:16Z","symbol":"NIM1197331","token_address":"0x54d2f8f90a6e4addaa773c9f1da0557e39676149","type":"artist","uuid":"5e860e33-7f53-43ce-9dc6-81907f834c47"}
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 0x1a39fc1776bdc3690f86a6e34bfd80b68d892babef7a6836c69975c97efef5a3. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5e860e33-7f53-43ce-9dc6-81907f834c47.json and https://artists.proofprofile.net/proofs/artist/5e860e33-7f53-43ce-9dc6-81907f834c47.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1a39fc1776bdc3690f86a6e34bfd80b68d892babef7a6836c69975c97efef5a3","name":"Alejandro Schwarz","registered_at":"2026-06-16T22:37:16Z","symbol":"NIM1197331","token_address":"0x54d2f8f90a6e4addaa773c9f1da0557e39676149","type":"artist","uuid":"5e860e33-7f53-43ce-9dc6-81907f834c47"}
track: Tango De Los Exilados
  type: MusicRecording
  duration: PT3M55S
  duration ms: 235840
  explicit: false
  by artist: Walter Taieb
  by artist: Vanessa-Mae
  by artist: Paul Bateman
  by artist: Alejandro Schwarz
  by artist: Fergus Gerrand
  by artist: Royal Philharmonic Orchestra
  by artist: Victor Villena
  in album: Choreography
    type: MusicAlbum
    date published: 2004
  isrc code: USSM10405544
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-08T19:25:45+00:00
  additional property: CopyrightChainExplorerURL
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    value: https://explorer.copyrightchains.com/tx/0x6b97d7b920f32637a68cef8092e40a6c866e78d6cf97e6da7653abed140675d0
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 953520
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/953520
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405544
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-06-13T13:32:09Z
  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 0x6b97d7b920f32637a68cef8092e40a6c866e78d6cf97e6da7653abed140675d0. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USSM10405544 — a six-check JSON result.
    date published: 2026-06-13T13:32:09Z
  audio: Tango De Los Exilados
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 129.494
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.474
    additional property: Energy
      type: PropertyValue
      value: 0.482
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.835
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.32
    additional property: Liveness
      type: PropertyValue
      value: 0.125
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.328
    additional property: Loudness (dB)
      type: PropertyValue
      value: -12.072
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Minor