Pith Number

pith:NRQFKFJT

pith:2026:NRQFKFJTRANVP7LYDEHOUTMSH4

not attested not anchored not stored refs pending

VIGIL: Verifying Identity via Gated Intermittent Likelihoods for Continuous Biometric Authentication

Aldridge Fonseca, Amith Kamath Belman, Frank Sicong Chen, Udayan Atreya

arxiv:2607.16651 v1 · 2026-07-18 · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NRQFKFJTRANVP7LYDEHOUTMSH4}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-21T01:20:20.362457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c60551533881b57fd78190eea4d923f035e122e85dceee0809089f9fe67920a

Aliases

arxiv: 2607.16651 · arxiv_version: 2607.16651v1 · doi: 10.48550/arxiv.2607.16651 · pith_short_12: NRQFKFJTRANV · pith_short_16: NRQFKFJTRANVP7LY · pith_short_8: NRQFKFJT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/NRQFKFJTRANVP7LYDEHOUTMSH4 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 6c60551533881b57fd78190eea4d923f035e122e85dceee0809089f9fe67920a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdf797a3e0946e2dae0ca72f1db6ea11820dca38f0a241df5e8c7d63ea857a9a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-07-18T05:58:05Z",
    "title_canon_sha256": "2802464743248f2f5ead5d70a7239825d764e1d51ef3e51c76650add37e4dcc1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.16651",
    "kind": "arxiv",
    "version": 1
  }
}