Sandra Rumolino
type: MusicGroup
genre: tango
popularity: 4
followers: 353
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x08c21bc1f6800c480b68230d9baef1f454baa6d5d2f6d473e0fde06c8b4f593a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eb0fcfd1-e18f-443f-b8c1-c3902225b098.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/eb0fcfd1-e18f-443f-b8c1-c3902225b098.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/eb0fcfd1-e18f-443f-b8c1-c3902225b098
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x08c21bc1f6800c480b68230d9baef1f454baa6d5d2f6d473e0fde06c8b4f593a","name":"Sandra Rumolino","registered_at":"2026-06-21T10:35:21Z","symbol":"NIM1899985","token_address":"0x99f0652fe57b8ecf6824802b98c4d488efcfbe58","type":"artist","uuid":"eb0fcfd1-e18f-443f-b8c1-c3902225b098"}
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 0x08c21bc1f6800c480b68230d9baef1f454baa6d5d2f6d473e0fde06c8b4f593a. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/eb0fcfd1-e18f-443f-b8c1-c3902225b098.json and https://artists.proofprofile.net/proofs/artist/eb0fcfd1-e18f-443f-b8c1-c3902225b098.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x08c21bc1f6800c480b68230d9baef1f454baa6d5d2f6d473e0fde06c8b4f593a","name":"Sandra Rumolino","registered_at":"2026-06-21T10:35:21Z","symbol":"NIM1899985","token_address":"0x99f0652fe57b8ecf6824802b98c4d488efcfbe58","type":"artist","uuid":"eb0fcfd1-e18f-443f-b8c1-c3902225b098"}
album: Por la Vuelta : Tango argentino
  type: MusicAlbum
  date published: 2002
album: Tangos entre cordes
  type: MusicAlbum
  date published: 2019
track: Nostalgias
  type: MusicRecording
  duration: PT4M58S
  duration ms: 298053
  explicit: false
  by artist: Cobian Juan Carlos
  by artist: Enrique Domingo Cadimaco
  by artist: Ophélie Gaillard
  by artist: Sandra Rumolino
  by artist: Rudi Flores
  in album: Alvorada
    type: MusicAlbum
    date published: 2015-03-30
  isrc code: FROV61410415
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T03:06:43+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xa4a8ea4761f2b0e9a18bda827970c7af4129a350509f3a9698fd57cbf7c64bbb
  additional property: OTSHash
  additional property: OTSBitcoinBlock
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    value: 960203
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960203
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FROV61410415
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T03:35:13Z
  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 0xa4a8ea4761f2b0e9a18bda827970c7af4129a350509f3a9698fd57cbf7c64bbb. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/FROV61410415 — a six-check JSON result.
    date published: 2026-07-30T03:35:13Z
  audio: Nostalgias
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 111.223
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.371
    additional property: Energy
      type: PropertyValue
      value: 0.191
    additional property: Speechiness
      type: PropertyValue
      value: 0.051
    additional property: Acousticness
      type: PropertyValue
      value: 0.972
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.114
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.131
    additional property: Loudness (dB)
      type: PropertyValue
      value: -17.325
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major