Argelia Fragoso
type: MusicGroup
genre: bolero
genre: nueva trova
genre: son cubano
genre: trova
popularity: 11
followers: 1366
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0x4678993db72f109fd0e594d65d294f7bf2b1ef3712286dc7acc39e931e38a047
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953648
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953648
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f1c6a61-0ed7-4e5b-b8f9-e38ff2015e7e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/3f1c6a61-0ed7-4e5b-b8f9-e38ff2015e7e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/3f1c6a61-0ed7-4e5b-b8f9-e38ff2015e7e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T15:20:52Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4678993db72f109fd0e594d65d294f7bf2b1ef3712286dc7acc39e931e38a047","name":"Argelia Fragoso","registered_at":"2026-06-14T11:04:08Z","symbol":"NIM0432906","token_address":"0xdf09055535f7fc97f17c3886c4517167c019938e","type":"artist","uuid":"3f1c6a61-0ed7-4e5b-b8f9-e38ff2015e7e"}
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 0x4678993db72f109fd0e594d65d294f7bf2b1ef3712286dc7acc39e931e38a047. Chain 2 (Bitcoin): anchored in block 953648 (2026-06-14T15:20:52Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/3f1c6a61-0ed7-4e5b-b8f9-e38ff2015e7e.json and https://artists.proofprofile.net/proofs/artist/3f1c6a61-0ed7-4e5b-b8f9-e38ff2015e7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T15:20:52Z
  text: {"copyright_id":"0x4678993db72f109fd0e594d65d294f7bf2b1ef3712286dc7acc39e931e38a047","name":"Argelia Fragoso","registered_at":"2026-06-14T11:04:08Z","symbol":"NIM0432906","token_address":"0xdf09055535f7fc97f17c3886c4517167c019938e","type":"artist","uuid":"3f1c6a61-0ed7-4e5b-b8f9-e38ff2015e7e"}
album: Argelia Fragoso Canta A Vicente Garrido
  type: MusicAlbum
  date published: 2003-09-24
album: Canta lo sentimental (Live)
  type: MusicAlbum
  date published: 2010-08-12
album: Entre Nosotros
  type: MusicAlbum
  date published: 2010-10-22
album: Inesperadamente
  type: MusicAlbum
  date published: 2013
album: Argelia Fragoso
  type: MusicAlbum
  date published: 2014-09-12
album: Concierto de Argelia Fragoso por los 100 años de la XEB
  type: MusicAlbum
  date published: 2024-11-21
track: Mi Ayer

Mi Ayer
type: MusicRecording
duration: PT3M22S
duration ms: 202533
explicit: false
by artist: Argelia Fragoso
by artist: Orquesta Aragón
in album: Boleros Cubanos De Oro, Vol. 4
  type: MusicAlbum
  date published: 2014-10-08
isrc code: USV351445410
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
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additional property: CopyrightChainExplorerURL
  type: PropertyValue
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additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957120
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957120
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USV351445410
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:22:41Z
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 957120
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:22:41+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc2c0eb7a0851da8c70f75f4a2b86d7e91d14e183288d9adc7a392d416d57688. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/USV351445410.
  date published: 2026-07-08T03:22:41Z
audio: Mi Ayer
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 166.169
  additional property: Musical Key
    type: PropertyValue
    value: 5
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.216
  additional property: Energy
    type: PropertyValue
    value: 0.302
  additional property: Speechiness
    type: PropertyValue
    value: 0.035
  additional property: Acousticness
    type: PropertyValue
    value: 0.69
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.124
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.423
  additional property: Loudness (dB)
    type: PropertyValue
    value: -14.862
  additional property: Key Name
    type: PropertyValue
    value: F
  additional property: Mode Name
    type: PropertyValue
    value: Major