Pablo Bruna
type: MusicGroup
genre: medieval
description: Pablo Bruna (22 June 1611 – 27 June 1679) was a Spanish composer and organist notable for his blindness (caused by a childhood bout of smallpox), which resulted in his being known as "El ciego de Daro
popularity: 4
followers: 305
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additional property: CopyrightChainExplorerURL
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additional property: OTSVerifyInstructions
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  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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484fd4507487ef96beb731b994cd82c060f4296032a9d2172ac066593519d01c. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ef01f497-91a5-4b47-a55b-7732c6bc3e1c.json and https://artists.proofprofile.net/proofs/artist/ef01f497-91a5-4b47-a55b-7732c6bc3e1c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T13:42:37Z
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album: Música Hispana de Órgano S.XVI-XX
  type: MusicAlbum
  date published: 2009-01-01
album: Mallorca Edition Historische Orgeln (Vol. 5)
  type: MusicAlbum
  date published: 2011
track: I'd Like to Teach the World to Sing
  type: MusicRecording
  duration: PT2M18S
  duration ms: 138000
  explicit: false
  by artist: Pablo Bruna
  by artist: arranged by Barry Rose
  by artist: Backer-davis-cook-greenaway
  by artist: Paul Phoenix
  by artist: The Boys of the St Paul's Cathedral Choir
  by artist: Jeremy Carpenter
  in album: Jubilate! Golden Favourites from St. Paul's Cathedral
    type: MusicAlbum
    date published: 1994-01-01
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  additional property: OTSTimestamp
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  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
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    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x345da021b77dd003cc1c704b233047830b978021a522393a44ab23f660ac0238. 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/CH6639472405.
    date published: 2026-07-08T03:20:19Z
  audio: I'd Like to Teach the World to Sing
    type: AudioObject
    additional property: Tempo (BPM)
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    additional property: Mode (Major/Minor)
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    additional property: Time Signature
      type: PropertyValue
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    additional property: Danceability
      type: PropertyValue
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    additional property: Energy
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    additional property: Speechiness
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    additional property: Acousticness
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    additional property: Instrumentalness
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    additional property: Liveness
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    additional property: Valence (Positivity)
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    additional property: Loudness (dB)
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    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major