Pith Number

pith:P6KV7QC5

pith:2019:P6KV7QC5YERUZQCPYCKDDRVBNM

not attested not anchored not stored refs pending

Night sleep duration trajectories and associated factors among preschool children from the EDEN cohort

Anne Forhan (CRESS - U1153, Barbara Heude (CRESS - U1153, CRESS - U1153), Eve Reynaud (CRESS - U1153, INSERM), Marie-Aline Charles (CRESS - U1153, Sabine Plancoulaine (INSERM, Sandrine Lioret (CRESS - U1153

arxiv:1904.05042 v1 · 2019-04-10 · stat.AP · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P6KV7QC5YERUZQCPYCKDDRVBNM}

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	2026-05-17T23:48:54.314831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f955fc05dc1234cc04fc09431c6a16b3d3f07c08717fc813ab18e0c4b7493df

Aliases

arxiv: 1904.05042 · arxiv_version: 1904.05042v1 · doi: 10.48550/arxiv.1904.05042 · pith_short_12: P6KV7QC5YERU · pith_short_16: P6KV7QC5YERUZQCP · pith_short_8: P6KV7QC5

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/P6KV7QC5YERUZQCPYCKDDRVBNM \
  | 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: 7f955fc05dc1234cc04fc09431c6a16b3d3f07c08717fc813ab18e0c4b7493df

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ef4c30fbde93aa58cbcfc1cce355ef37f9b07acb3270d62ac9f249aa8995869d",
    "cross_cats_sorted": [
      "q-bio.NC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2019-04-10T07:56:13Z",
    "title_canon_sha256": "74a3a1b21aa3a5d029bc50cb802c3484d520645827dcc520821336945b76f6e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05042",
    "kind": "arxiv",
    "version": 1
  }
}