Cosimo Malvaso
type: MusicGroup
popularity: 13
followers: 113
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6964a38607c92f28639cc3b59a9c106f4fb17db8913af68b6b04952ed33f36a9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953770
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953770
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94af8139-759f-4939-854f-98da70b10976.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/94af8139-759f-4939-854f-98da70b10976.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/94af8139-759f-4939-854f-98da70b10976
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T09:50:11Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6964a38607c92f28639cc3b59a9c106f4fb17db8913af68b6b04952ed33f36a9","name":"Cosimo Malvaso","registered_at":"2026-06-14T20:06:36Z","symbol":"NIM0562275","token_address":"0x5a796f8f761e1e500859a6653e33f3826f3e7cba","type":"artist","uuid":"94af8139-759f-4939-854f-98da70b10976"}
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 0x6964a38607c92f28639cc3b59a9c106f4fb17db8913af68b6b04952ed33f36a9. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/94af8139-759f-4939-854f-98da70b10976.json and https://artists.proofprofile.net/proofs/artist/94af8139-759f-4939-854f-98da70b10976.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-15T09:50:11Z
  text: {"copyright_id":"0x6964a38607c92f28639cc3b59a9c106f4fb17db8913af68b6b04952ed33f36a9","name":"Cosimo Malvaso","registered_at":"2026-06-14T20:06:36Z","symbol":"NIM0562275","token_address":"0x5a796f8f761e1e500859a6653e33f3826f3e7cba","type":"artist","uuid":"94af8139-759f-4939-854f-98da70b10976"}