Digital Deed

You will understand how licences are recorded immutably on the blockchain. The Digital Deed is the final, legally binding record of a transaction on Extra Scoop. It proves ownership and establishes the exact terms of the exclusive licence purchased by a newsroom.

Decentralised Storage

When a transaction settles, the system generates a cryptographic JSON manifest (the Extra Scoop Content Deed). This document contains the details of the scoop, the journalist, the agency, the price paid, and the final forensic audit results. This manifest is pinned to decentralised IPFS storage, ensuring it remains publicly accessible and immutable regardless of internal servers.

Blockchain Anchoring

To guarantee the integrity of the licence, the deed is anchored to the Base L2 blockchain (a Coinbase-backed Ethereum rollup). The system calculates a SHA-256 Merkle root based on the core transaction identifiers. This forensic anchor is submitted to the ContentDeed.sol smart contract.

event DeedAnchored(
    bytes32 indexed merkleRoot,
    string indexed scoopId,
    address indexed journalist,
    address agency,
    uint256 pricePaid,
    uint256 timestamp
);

Once the transaction is confirmed on-chain, the licence transfer is irreversible.

Forensic Merkle Anchor

The cryptographic anchor committed on-chain binds the unique asset identifier, the provenance manifest root, and the acquiring agency:

\text{ForensicAnchor} = \text{0x} + \text{SHA256}(\text{asset.id} : \text{provenanceRoot} : \text{license.agency\_id})

Introduction

Core Concepts

Platform Engine

Eyewitness App

Newsroom Terminal

Developer Hub

Decentralised Storage

Blockchain Anchoring

Forensic Merkle Anchor

​Decentralised Storage

​Blockchain Anchoring

​Forensic Merkle Anchor

Decentralised Storage

Blockchain Anchoring

Forensic Merkle Anchor