bsv.cx

Foundational services, permanently anchored to Bitcoin. Everything here writes a compact, publicly-auditable record into an OP_RETURN — no trusted database row, no company that can quietly kill or edit it.

🔗 URL shortener

Short links whose code is derived from the URL itself and anchored on-chain — anyone can recompute and verify.

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🔎 Explorer

Browse transactions, addresses, and blocks; bsv.cx anchors link back to their proofs.

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🌐 Web-page archive

Prove what a web page said at a moment in time — screenshot + HTML, hashed and anchored. The proof is forever; the snapshot is best-effort.

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📄 Notary — proof of existence

Timestamp a document without revealing it — hashed in your browser, only the 64-char fingerprint is sent.

— or paste text to timestamp (no JavaScript needed) —

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🧾 Batch notary API

Timestamp thousands of fingerprints in one transaction via a single Merkle root — each item gets an independently-verifiable inclusion proof. Developer API, up to 3000 per batch.

curl -X POST https://bsv.cx/n/batch \
  -H 'content-type: application/json' \
  -d '{"hashes":["<sha256hex>", "…"]}'

Full docs →