Pith Number

pith:4KL7HUNY

pith:2013:4KL7HUNYWXHBBEVYBYCDZMFN7V

not attested not anchored not stored refs pending

`Truncate, replicate, sample': a method for creating integer weights for spatial microsimulation

Dimitris Ballas, Robin Lovelace

arxiv:1303.5228 v1 · 2013-03-21 · 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{4KL7HUNYWXHBBEVYBYCDZMFN7V}

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	2026-05-18T03:30:13.523397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e297f3d1b8b5ce1092b80e043cb0adfd7fed645cf6e27bf0bb4e45231aa9af58

Aliases

arxiv: 1303.5228 · arxiv_version: 1303.5228v1 · doi: 10.48550/arxiv.1303.5228 · pith_short_12: 4KL7HUNYWXHB · pith_short_16: 4KL7HUNYWXHBBEVY · pith_short_8: 4KL7HUNY

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/4KL7HUNYWXHBBEVYBYCDZMFN7V \
  | 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: e297f3d1b8b5ce1092b80e043cb0adfd7fed645cf6e27bf0bb4e45231aa9af58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa2f4a2bedce91e802852a3f556fbc9b80fd2549e938be24ba61ef3d6bc03e96",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2013-03-21T11:04:10Z",
    "title_canon_sha256": "43a4072259bb09c354ac75caa688941eb677b2330c1aab4140f15dbd24337929"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.5228",
    "kind": "arxiv",
    "version": 1
  }
}