Marco Zardi
type: MusicGroup
popularity: 3
followers: 169
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x67b74ec401bd7e3812eaf45f757df9c326e3bdc5e6a0be0715db0e430d9e0576
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce84b78f-407a-4f20-ac1c-38948875505d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ce84b78f-407a-4f20-ac1c-38948875505d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ce84b78f-407a-4f20-ac1c-38948875505d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x67b74ec401bd7e3812eaf45f757df9c326e3bdc5e6a0be0715db0e430d9e0576","name":"Marco Zardi","registered_at":"2026-06-21T00:13:46Z","symbol":"NIM1759861","token_address":"0x329c929c3786c439f0716b4e2c3bdc9ebe11a72a","type":"artist","uuid":"ce84b78f-407a-4f20-ac1c-38948875505d"}
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 0x67b74ec401bd7e3812eaf45f757df9c326e3bdc5e6a0be0715db0e430d9e0576. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce84b78f-407a-4f20-ac1c-38948875505d.json and https://artists.proofprofile.net/proofs/artist/ce84b78f-407a-4f20-ac1c-38948875505d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x67b74ec401bd7e3812eaf45f757df9c326e3bdc5e6a0be0715db0e430d9e0576","name":"Marco Zardi","registered_at":"2026-06-21T00:13:46Z","symbol":"NIM1759861","token_address":"0x329c929c3786c439f0716b4e2c3bdc9ebe11a72a","type":"artist","uuid":"ce84b78f-407a-4f20-ac1c-38948875505d"}
album: I Wanna Fly
  type: MusicAlbum
  date published: 2010-05-17
album: Forever
  type: MusicAlbum
  date published: 2010-12-21
album: El Talisman
  type: MusicAlbum
  date published: 2011
album: I Wanna Fly (feat. Nikasoul)
  type: MusicAlbum
  date published: 2011-07-29
album: I Wanna Fly (feat. Nikasoul) [All Versions]
  type: MusicAlbum
  date published: 2011-08-31
album: I Need Your Love
  type: MusicAlbum
  date published: 2012-07-08
album: Let Me Believe
  type: MusicAlbum
  date published: 2012-12-07