Pith Number

pith:ZUU2T5QH

pith:2011:ZUU2T5QHOLPG7Y2FPSBPTH7434

not attested not anchored not stored refs pending

High-resolution measurements of face-to-face contact patterns in a primary school

A. Barrat, B. Lina, C. Cattuto, C. R\'egis, J.-F. Pinton, J. Stehl\'e, L. Isella, M. Quaggiotto, N. Voirin, P. Vanhems, W. Van den Broeck

arxiv:1109.1015 v1 · 2011-09-05 · physics.soc-ph · cs.SI · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZUU2T5QHOLPG7Y2FPSBPTH7434}

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	2026-05-18T04:14:05.602423Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd29a9f60772de6fe3457c82f99ffcdf021a6a42ab1fe9e46768761df529847f

Aliases

arxiv: 1109.1015 · arxiv_version: 1109.1015v1 · doi: 10.48550/arxiv.1109.1015 · pith_short_12: ZUU2T5QHOLPG · pith_short_16: ZUU2T5QHOLPG7Y2F · pith_short_8: ZUU2T5QH

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/ZUU2T5QHOLPG7Y2FPSBPTH7434 \
  | 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: cd29a9f60772de6fe3457c82f99ffcdf021a6a42ab1fe9e46768761df529847f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f5c0101f92a6e6a8094d0ed0eac05e7780844622f461be19ca500ec298f4b51",
    "cross_cats_sorted": [
      "cs.SI",
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2011-09-05T21:39:39Z",
    "title_canon_sha256": "c6e0eceb28dc05f7f1c8b9b1dc88c9ed9923c1a0a00c24314bed9d635fc0e95e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1015",
    "kind": "arxiv",
    "version": 1
  }
}