Roberto Piumini
type: MusicGroup
description: Roberto Piumini (born 14 March 1947) is an Italian writer, known particularly for his children's stories. Born in the town of Edolo in Lombardy, Piumini graduated with a degree in pedagogy from the U
popularity: 20
followers: 278
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xead72b2ffe04842799ef21fdd46ada31b5889725c203d95505100b1f682f9047
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953741
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953741
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b17e4e5-1cd5-455f-8ea5-2e4a26a06697.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9b17e4e5-1cd5-455f-8ea5-2e4a26a06697.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9b17e4e5-1cd5-455f-8ea5-2e4a26a06697
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T04:44:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xead72b2ffe04842799ef21fdd46ada31b5889725c203d95505100b1f682f9047","name":"Roberto Piumini","registered_at":"2026-06-14T20:49:33Z","symbol":"NIM0572519","token_address":"0xd7c97f22c0fb0e159cd9b50d1c3c85eff9779e62","type":"artist","uuid":"9b17e4e5-1cd5-455f-8ea5-2e4a26a06697"}
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 0xead72b2ffe04842799ef21fdd46ada31b5889725c203d95505100b1f682f9047. Chain 2 (Bitcoin): anchored in block 953741 (2026-06-15T04:44:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b17e4e5-1cd5-455f-8ea5-2e4a26a06697.json and https://artists.proofprofile.net/proofs/artist/9b17e4e5-1cd5-455f-8ea5-2e4a26a06697.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T04:44:49Z
  text: {"copyright_id":"0xead72b2ffe04842799ef21fdd46ada31b5889725c203d95505100b1f682f9047","name":"Roberto Piumini","registered_at":"2026-06-14T20:49:33Z","symbol":"NIM0572519","token_address":"0xd7c97f22c0fb0e159cd9b50d1c3c85eff9779e62","type":"artist","uuid":"9b17e4e5-1cd5-455f-8ea5-2e4a26a06697"}
album: Mario Ruffini: Notte Stellata A Betlemme
  type: MusicAlbum
  date published: 1999-12-20
album: Piccole fiabe per le sere d'estate
  type: MusicAlbum
  date published: 2024-05-23