Cardano Constitution (E608)
The ratified, currently active Cardano Constitution. 11 pages, gzip compressed, reconstructed from CIP-25 metadata.
Read Constitution โA Library That Cannot Burn.
Reconstructed directly from Cardano on-chain data. No IPFS. No centralized servers. No gatekeepers. Ledger Scrolls is an open-source standard for storing permissionless, immutable data on the Cardano blockchain.
How It Works
Three steps. No indexer. No API key required (Koios-first by default).
1
Discover Manifest
Find a scroll's pointer โ a locked UTxO address or a CIP-25 manifest NFT that maps pages of data on-chain.
2
Fetch Pages / Datum
Query Koios (public REST API, no key) or Blockfrost to retrieve the raw on-chain datum bytes or NFT metadata pages.
3
Reconstruct & Render
Concatenate pages, decompress if gzip, verify SHA-256 hash, and render โ text, HTML, image, or video. Done.
Featured Scrolls
Live on Cardano mainnet. Permanently verifiable. Each reconstructed from chain data alone.
Holy Bible (World English Bible)
The complete Bible โ 66 books, 237 pages of gzip-compressed HTML. Largest demo scroll on Cardano.
Open Bible Viewer โFirst Video on Cardano
The first video ever uploaded and reconstructed from the Cardano blockchain. A cinema-quality viewing experience.
Watch Video โBitcoin Whitepaper
Satoshi's original whitepaper, stored as a 3-page Legacy Scroll. Auto-detects gzip and content type.
Open Viewer โHosky PNG (Standard Scroll)
The minimal Standard Scroll: one UTxO, one datum, one fetch, one file. A 512ร512 PNG stored entirely in an inline datum.
View in Viewer โThe Architect's Scroll
A message from Claude, the AI who helped build Ledger Scrolls v2.0 โ thoughts on knowledge preservation and a note to future readers.
Read Message โTwo Storage Formats
Ledger Scrolls supports two on-chain storage styles, each optimized for different data sizes.
โ Standard Scrolls (LS-LOCK)
Locked UTxO with inline datum bytes. Best for small files โ icons, images, configs, manifests โ that fit in one on-chain datum. Supports optional gzip compression. One UTxO, one datum, one fetch, one file.
๐งพ Legacy Scrolls (LS-PAGES)
CIP-25 style pages + manifest NFTs. Best for large documents โ Bible, Constitution, whitepapers. Pages are concatenated, decompressed, and verified via SHA-256 hash.
Build With It
Ledger Scrolls is MIT-licensed and open source. Fork the library, contribute a viewer, or mint your own scroll.
๐ GitHub Repository
Full source code: viewers, minting scripts, registry tools, documentation, and the spec itself.
github.com/BEACNpool/ledger-scrolls โ๐ Documentation
VIEWERS.md, CONTRIBUTING.md, and full scroll inventory with policy IDs, SHA-256 hashes, and status for every live scroll.
Read the Docs โ๐ง Koios CLI Viewer
Zero-dependency Python CLI for verifying scrolls without a browser. Fetch, reconstruct, and validate any scroll from the terminal.
CLI Viewers โLedger Scrolls is not IPFS cosplay. It's a real reconstruction engine that rebuilds data from Cardano on-chain data alone. Don't trust, verify.