Pietro Borradori
type: MusicGroup
genre: neoclassical
description: thumb|Pietro Borradori Pietro Borradori (Milan, 1965) is an Italian composer and pianist. Biography He began to play Piano at the age of 8 years-old. At 12, he started to compose his first short pie
popularity: 5
followers: 2562
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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 0x83f1d91fee34f0ea7d58d664665d8a6ca01bd6f2e3f00ec1a68cad90bedc4443. 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/5d71bc87-1653-4be0-ad49-30baff02de44.json and https://artists.proofprofile.net/proofs/artist/5d71bc87-1653-4be0-ad49-30baff02de44.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
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album: Skew Lines #1
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  date published: 2017-06-16
album: Serendipity
  type: MusicAlbum
  date published: 2020-11-02
album: Dual C
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  date published: 2020-11-28
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    by artist: Pietro Borradori
    in album: Dual C
      type: MusicAlbum
      date published: 2020-11-28
    genre: neoclassical
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    additional property: OTSVerifyInstructions
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      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
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      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85b228a56505506cc921411a324aab10df03e92cddf31021f9199bc1ffa0dc66. Chain 2 (Bitcoin): anchored in block 959065 (2026-07-21T22:00:50Z), 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/QZNWR2051637.
      date published: 2026-07-21T22:00:50Z
    audio: Dual C
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      additional property: Tempo (BPM)
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        value: Eb
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album: Detachment
  type: MusicAlbum
  date published: 2020-12-13
album: Absolute Horizon
  type: MusicAlbum
  date published: 2020-12-28
album: Monody
  type: MusicAlbum
  date published: 2021-01-14
album: Dual B
  type: MusicAlbum
  date published: 2021-01-30
album: Don't Think Twice
  type: MusicAlbum
  date published: 2021-02-11
album: Serotonin
  type: MusicAlbum
  date published: 2021-03-10
album: Dual A
  type: MusicAlbum
  date published: 2021-04-09
album: Interlude
  type: MusicAlbum
  date published: 2021-04-30
album: Lost Past
  type: MusicAlbum
  date published: 2021-05-27
album: Dual
  type: MusicAlbum
  date published: 2021-06-10
album: Skew Lines #2
  type: MusicAlbum
  date published: 2021-09-16
album: Skew Lines #3
  type: MusicAlbum
  date published: 2021-10-28
album: Living on Titan
  type: MusicAlbum
  date published: 2021-12-18
album: Stay on
  type: MusicAlbum
  date published: 2022-04-23
album: Decay
  type: MusicAlbum
  date published: 2022-07-21
album: Skew Lines
  type: MusicAlbum
  date published: 2022-12-29
album: Solitudines
  type: MusicAlbum
  date published: 2023-05-10