{
  "slug": "proof-of-stake-pages-14118",
  "type": "nft",
  "standard": "ERC721",
  "network": "ethereum",
  "contract": "0x5bF5BCc5362F88721167C1068b58C60caD075aAc",
  "tokenId": "14118",
  "collection": "Proof Of Stake Pages",
  "symbol": "PoSp",
  "holder": "0x42C137538bEe9d7eca612b41A807b5FB7B863C20",
  "mintedAt": "2022-08-31T11:31:11Z",
  "signedTo": "monproweb.eth",
  "pledgeWei": "1337000000000000",
  "externalUrl": "https://proofofstake.gitcoin.co/",
  "significance": "Vitalik Buterin's book \"Proof of Stake: The Making of Ethereum and the Philosophy of Blockchains\" — digital edition issued via Gitcoin Grants Round 15 to fund public goods. Personally inscribed to monproweb.eth. Pledged 0.001337 ETH (the symbolic \"leet\" amount), receiving the signed book NFT in return. Minted on August 31, 2022 — exactly 15 days before The Merge (PoW → PoS transition, September 15, 2022). Time-stamped witness to having supported public-goods funding in the run-up to one of Ethereum's defining moments. The on-chain metadata carries Vitalik's message: \"Thank you for supporting public goods, and enjoy the book!\"",
  "verifiedVia": "eth_call ownerOf(14118) on Ethereum mainnet via publicnode + 1rpc",
  "verifiedAt": "2026-04-29"
}