CrawlCheck

Timestamp proof

Every report is fingerprinted, and each day is anchored to Bitcoin

A report is a claim about what a server did at a moment in time. Until it is anchored, the only evidence that it said so — and that nobody edited it afterwards — is our own database, which we control.

The citation state is inside this digest too. The names, the phone numbers, the address, and every profile the site claims — with what each one answered when it was checked — are part of the fingerprint. It does not mean a directory indexed anything: no timestamp can do that. It means the state of those listings on that date can be proved rather than remembered.

What this proves: that a report existed in exactly this form at that time, and has not been altered since. What it does not prove: that the measurement was correct. Those are two different claims and only the first can be settled by mathematics.

How it works

  1. Each report is reduced to its measurements — host, timestamp, section scores, every path and status fetched, every crawler identity and what it received — canonicalised with sorted keys and hashed with SHA-256. Wording, layout and section copy are excluded, so an editorial change never invalidates an existing proof.
  2. The day’s digests are sorted and folded into a Merkle tree: parent = SHA256(left || right), an odd node paired with itself. Sorting means the order scans arrived cannot change the root.
  3. The root is submitted to the OpenTimestamps calendars, which aggregate it into a Bitcoin transaction. No wallet, no fee, no key held by us — the proof is a file, not a coin.
  4. Anyone verifies it with the reference client and no permission from us: ots verify -d <root> crawlcheck-2026-09-21.ots

2026-09-21

Merkle root7aead3618f695da5b302db87e30a7721fa715042f973a101e82c1a6ce86e17c3
Reports covered212
Sealed2026-09-22T01:17:23.815Z
Bitcoin anchorsubmitted to https://a.pool.opentimestamps.org — download the .ots proof

Every sealed day

46 days anchored. Each links to its own root and proof file.

A fresh submission reports pending confirmation until the calendar’s next Bitcoin transaction confirms, usually within a few hours. Run ots upgrade on the file after that and it carries a block header attestation permanently.

The 212 digests sealed under this root
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