Apollo Granforte
type: MusicGroup
genre: opera
description: Apollo Granforte (20 July 1886, Legnago – 11 June 1975, Milan) was an Italian opera singer and one of the leading baritones during the inter-war period of the 20th century. Early years and education
popularity: 3
followers: 1039
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd0a439d37db0061d7587ba759a10e77794a1658972ea08d5cec9e6affc6724c9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5f89e8d-cfa6-4a47-bdeb-0827ebc050ab.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5f89e8d-cfa6-4a47-bdeb-0827ebc050ab.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e5f89e8d-cfa6-4a47-bdeb-0827ebc050ab
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd0a439d37db0061d7587ba759a10e77794a1658972ea08d5cec9e6affc6724c9","name":"Apollo Granforte","registered_at":"2026-06-21T08:30:47Z","symbol":"NIM1876013","token_address":"0xa4b3d1258ff7ecb8a5e45256180e659cf13840cb","type":"artist","uuid":"e5f89e8d-cfa6-4a47-bdeb-0827ebc050ab"}
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 0xd0a439d37db0061d7587ba759a10e77794a1658972ea08d5cec9e6affc6724c9. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5f89e8d-cfa6-4a47-bdeb-0827ebc050ab.json and https://artists.proofprofile.net/proofs/artist/e5f89e8d-cfa6-4a47-bdeb-0827ebc050ab.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0xd0a439d37db0061d7587ba759a10e77794a1658972ea08d5cec9e6affc6724c9","name":"Apollo Granforte","registered_at":"2026-06-21T08:30:47Z","symbol":"NIM1876013","token_address":"0xa4b3d1258ff7ecb8a5e45256180e659cf13840cb","type":"artist","uuid":"e5f89e8d-cfa6-4a47-bdeb-0827ebc050ab"}
album: Lebendige Vergangenheit - Apollo Granforte
  type: MusicAlbum
  date published: 2006-08-30
album: Lebendige Vergangenheit - Apollo Granforte (Vol.2)
  type: MusicAlbum
  date published: 2006-08-31