Fabri Fibra
type: MusicGroup
description: Fabrizio Tarducci (born 17 October 1976), known professionally as Fabri Fibra, is an Italian rapper. In his career he has sold more than 2.3 million certified copies. Biography Tarducci was born in S
popularity: 3
followers: 30
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x091b01c8958f1efb3f2486c78da1cb0b787836e068d5dd3fbaa5007f52fb8854
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5311ea2e-a872-4678-9ab9-e992d2926dc7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5311ea2e-a872-4678-9ab9-e992d2926dc7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5311ea2e-a872-4678-9ab9-e992d2926dc7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x091b01c8958f1efb3f2486c78da1cb0b787836e068d5dd3fbaa5007f52fb8854","name":"Fabri Fibra","registered_at":"2026-06-16T18:29:39Z","symbol":"NIM1138247","token_address":"0x8835922bb9b37c3ad1a35541b2b7168cbbd15925","type":"artist","uuid":"5311ea2e-a872-4678-9ab9-e992d2926dc7"}
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 0x091b01c8958f1efb3f2486c78da1cb0b787836e068d5dd3fbaa5007f52fb8854. 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/5311ea2e-a872-4678-9ab9-e992d2926dc7.json and https://artists.proofprofile.net/proofs/artist/5311ea2e-a872-4678-9ab9-e992d2926dc7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x091b01c8958f1efb3f2486c78da1cb0b787836e068d5dd3fbaa5007f52fb8854","name":"Fabri Fibra","registered_at":"2026-06-16T18:29:39Z","symbol":"NIM1138247","token_address":"0x8835922bb9b37c3ad1a35541b2b7168cbbd15925","type":"artist","uuid":"5311ea2e-a872-4678-9ab9-e992d2926dc7"}