Pith Number

pith:Q7PFQXSI

pith:2016:Q7PFQXSI4NCBTTZI6UTFTKA3J2

not attested not anchored not stored refs pending

Method to Assess the Temporal Persistence of Potential Biometric Features: Application to Oculomotor, and Gait-Related Databases

Ioannis Rigas, Lee Friedman, Mark S. Nixon, Oleg V. Komogortsev

arxiv:1609.03948 v1 · 2016-09-13 · q-bio.QM · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q7PFQXSI4NCBTTZI6UTFTKA3J2}

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	2026-05-18T00:41:01.644094Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87de585e48e34419cf28f52659a81b4e838bb1508cf8241f419eae685e2d4718

Aliases

arxiv: 1609.03948 · arxiv_version: 1609.03948v1 · doi: 10.48550/arxiv.1609.03948 · pith_short_12: Q7PFQXSI4NCB · pith_short_16: Q7PFQXSI4NCBTTZI · pith_short_8: Q7PFQXSI

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/Q7PFQXSI4NCBTTZI6UTFTKA3J2 \
  | 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: 87de585e48e34419cf28f52659a81b4e838bb1508cf8241f419eae685e2d4718

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c069c21a723a93202fa35c2a1c87a4c9b7f3cb422c3d6fa30d7101ae30daf8bc",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2016-09-13T17:38:39Z",
    "title_canon_sha256": "d0ceb395ae13d4256c1aa5bc4587424af8c46450ed31c2d0593d09ec7b424402"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.03948",
    "kind": "arxiv",
    "version": 1
  }
}