Fernando Gelbard
type: MusicGroup
popularity: 2
followers: 419
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf457add34ded54d567c7792f2878ac462dcc6bedeba7091e09e17b677827c652
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
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/715cc28c-6e52-4ada-b579-856b6c2db6ec.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/715cc28c-6e52-4ada-b579-856b6c2db6ec.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/715cc28c-6e52-4ada-b579-856b6c2db6ec
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0xf457add34ded54d567c7792f2878ac462dcc6bedeba7091e09e17b677827c652. 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/715cc28c-6e52-4ada-b579-856b6c2db6ec.json and https://artists.proofprofile.net/proofs/artist/715cc28c-6e52-4ada-b579-856b6c2db6ec.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xf457add34ded54d567c7792f2878ac462dcc6bedeba7091e09e17b677827c652","name":"Fernando Gelbard","registered_at":"2026-06-17T05:07:28Z","symbol":"NIM1290447","token_address":"0xf61c5ac7de8600342e8d460f05aa56f01061d541","type":"artist","uuid":"715cc28c-6e52-4ada-b579-856b6c2db6ec"}
album: Tarde en ION
  type: MusicAlbum
  date published: 1972
album: Alevacolariea 1974 Analog Original - Single
  type: MusicAlbum
  date published: 1974-12-14
album: Didi (Original Analog Master, Bonus Tracks)
  type: MusicAlbum
  date published: 1974-12-14
album: Alevacolariea
  type: MusicAlbum
  date published: 1974-12-14
album: Didi
  type: MusicAlbum
  date published: 2002
album: Didi
  type: MusicAlbum
  date published: 2002-07-08
album: Alevacolaries feat. Fernando Gelbard, Ruben Rada, Chivo Borraro & Chino Rossi[
  type: MusicAlbum
  date published: 2015-12-02
album: Alevacolariea Dimensions
  type: MusicAlbum
  date published: 2016-11-30
album: Rodríguez Peña Blues / Les Feuilles Mortes
  type: MusicAlbum
  date published: 2021-11-19
track: Variaciones Norteñas

Variaciones Norteñas
type: MusicRecording
duration: PT2M35S
duration ms: 155520
explicit: false
by artist: Jorge Calandrelli
by artist: Fernando Gelbard
by artist: Domingo Cura
in album: Calandrelli 1970
  type: MusicAlbum
  date published: 2018-08-16
popularity: 0
isrc code: TCADT1832550
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
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additional property: CopyrightChainExplorerURL
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  value: https://explorer.copyrightchains.com/tx/0xbc00c6c19ea961127309137a0fca5aa2d0a18cb3ee7ab07af1b94ee5dda2e0b5
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 957118
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/957118
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCADT1832550
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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: 957118
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-08T03:20:19+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 0xbc00c6c19ea961127309137a0fca5aa2d0a18cb3ee7ab07af1b94ee5dda2e0b5. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/TCADT1832550.
  date published: 2026-07-08T03:20:19Z
audio: Variaciones Norteñas
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 182.612
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.448
  additional property: Energy
    type: PropertyValue
    value: 0.338
  additional property: Speechiness
    type: PropertyValue
    value: 0.372
  additional property: Acousticness
    type: PropertyValue
    value: 0.969
  additional property: Instrumentalness
    type: PropertyValue
    value: 0.955
  additional property: Liveness
    type: PropertyValue
    value: 0.103
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.343
  additional property: Loudness (dB)
    type: PropertyValue
    value: -20.742
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor