Pith Number

pith:YDQFPFWE

pith:2013:YDQFPFWE5XGP6V6BLXIAON5ZWM

not attested not anchored not stored refs pending

Handling Attrition in Longitudinal Studies: The Case for Refreshment Samples

D. Sunshine Hillygus, Jerome P. Reiter, Siyu Zheng, Yajuan Si, Yiting Deng

arxiv:1306.2791 v1 · 2013-06-12 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YDQFPFWE5XGP6V6BLXIAON5ZWM}

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	2026-05-18T03:21:09.416626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0e05796c4edccff57c15dd00737b9b332c2fbd21a20562ddff021f1d06faa32

Aliases

arxiv: 1306.2791 · arxiv_version: 1306.2791v1 · doi: 10.48550/arxiv.1306.2791 · pith_short_12: YDQFPFWE5XGP · pith_short_16: YDQFPFWE5XGP6V6B · pith_short_8: YDQFPFWE

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/YDQFPFWE5XGP6V6BLXIAON5ZWM \
  | 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: c0e05796c4edccff57c15dd00737b9b332c2fbd21a20562ddff021f1d06faa32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80780de125276b2858511c9a971a159464c158ffe0b6f81b47c0eaa7f3389183",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2013-06-12T11:40:37Z",
    "title_canon_sha256": "e85f1c489aed4b51c30507a5e62ab07069e0ba447479efdc525999538545d5cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.2791",
    "kind": "arxiv",
    "version": 1
  }
}