Marcelo Araujo
type: MusicGroup
description: Marcelo Araujo (né Lázaro Jaime Zilberman; 12 June 1947 – 16 March 2026) was an Argentine sports journalist. He worked from 1989 to 2004 on Fútbol de Primera. In 2008 he was against Julio Grondona, th
popularity: 4
followers: 62
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1a5a821285779faa98e5ffb9586d0e99188e7dce34ef4ab737079eada06c30d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954603
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954603
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf771997-279b-4670-b72d-7e35476ac98d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bf771997-279b-4670-b72d-7e35476ac98d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bf771997-279b-4670-b72d-7e35476ac98d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T21:47:54Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1a5a821285779faa98e5ffb9586d0e99188e7dce34ef4ab737079eada06c30d9","name":"Marcelo Araujo","registered_at":"2026-06-20T18:30:12Z","symbol":"NIM1681585","token_address":"0x87f972fbad3374c85acea29cf822af8d48e5e160","type":"artist","uuid":"bf771997-279b-4670-b72d-7e35476ac98d"}
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 0x1a5a821285779faa98e5ffb9586d0e99188e7dce34ef4ab737079eada06c30d9. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bf771997-279b-4670-b72d-7e35476ac98d.json and https://artists.proofprofile.net/proofs/artist/bf771997-279b-4670-b72d-7e35476ac98d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-20T21:47:54Z
  text: {"copyright_id":"0x1a5a821285779faa98e5ffb9586d0e99188e7dce34ef4ab737079eada06c30d9","name":"Marcelo Araujo","registered_at":"2026-06-20T18:30:12Z","symbol":"NIM1681585","token_address":"0x87f972fbad3374c85acea29cf822af8d48e5e160","type":"artist","uuid":"bf771997-279b-4670-b72d-7e35476ac98d"}
album: Reppit
  type: MusicAlbum
  date published: 2013
album: Everything
  type: MusicAlbum
  date published: 2013-03-29
album: Drop In
  type: MusicAlbum
  date published: 2013-05-30
album: Break
  type: MusicAlbum
  date published: 2013-11-13