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Project · verification-infrastructure

ValiChord

a system for independent claim verificationDistributed integrity infrastructure for collusion-resistant independent verification. Blind peer validation of any verifiable claim — scie…
How you run it
not recorded
Holochain version
0.7.1
Activity
active
Checked
29 October 2026
Covered by hAppRadar on 23 October 2026: Weekly Pulse #5Covered by hAppRadar on 20 October 2026: Epistemic Resonance Protocol lets composers count arrived evidence before a write

What is ValiChord and what is it for?

ValiChord is a peer-to-peer system for checking whether published computational research can be reproduced by someone other than its author. Independent validators re-run a study, and their findings — including disagreement — become a permanent record that cannot be changed afterwards.

According to the project's own account, most published computational research has never been independently verified — not because verification is impossible, but because no shared infrastructure exists to coordinate it or to keep a durable record of what it finds. ValiChord is built to supply that coordination for computational studies.

A validation round runs in two phases. The researcher first seals their reported result, so it cannot be changed later. Independent validators then re-run the study, and each seals their own verdict before seeing anyone else's. Only once every verdict is sealed are the seals opened together, and the outcome — including disagreement — is written to a record that cannot afterwards be altered or removed. The project calls that record a Harmony Record and builds the system on Holochain.

The project's README points to a browser demo for trying the protocol without a local setup: a visitor states a claim, seals their own answer, and supplies their own Anthropic API key, after which three AI validators research the claim blind and the visitor triggers the reveal. More detail is on the project's website and in the repository's documentation.

How to get it

In a browser

  1. Open the browser demo linked from the project's README (valichord-demo.onrender.com/demo) — the repository describes it as one click, no setup.
  2. Enter a claim and your own answer, and supply your own Anthropic API key.
  3. Seal your answer, wait for the three validators to commit blind, then trigger the reveal yourself.

Source: https://github.com/ValiChord/ValiChord

Questions people ask

What is a Harmony Record?
It is the permanent, publicly readable output of a completed validation round, recording who validated a study, what each validator concluded, and how closely they agreed. The project describes it as preserving the full texture of scientific agreement and disagreement rather than a plain pass or fail. source
Who can see a researcher's data or a validator's findings?
The project documents separate private networks for the researcher's repository and for each validator's workspace, which stay on the participant's own machine and never enter the shared network. Only cryptographic commitment hashes are published before the reveal, so neither side can see the other's answer early. source

From 3 public sources, checked 23 September 2026.

Try ValiChord

Details & sources

Evidence

Release
github.com/ValiChord/ValiChord/releases/tag/0.6.7shipped in a release · seen since 29 October 2026 · github.release@1
Last change
api.github.com/repos/ValiChord/ValiChordlisted by a third party · seen since 20 October 2026 · github.repository@1
Activity
api.github.com/repos/ValiChord/ValiChordlisted by a third party · seen since 20 October 2026 · liveness@1

Compatibility

holochain-client
—
happ.yaml
present · valichord/happ.yaml @ 1e4bc66
web-happ.yaml
absent
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