Pith Number

pith:KFOZSMQS

pith:2015:KFOZSMQSRIIT3S6U4ZNPDDPGFM

not attested not anchored not stored refs pending

Fundamental limits on the accuracy of demographic inference based on the sample frequency spectrum

Jonathan Terhorst, Yun S. Song

arxiv:1505.04228 v1 · 2015-05-16 · q-bio.PE · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KFOZSMQSRIIT3S6U4ZNPDDPGFM}

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	2026-05-18T01:40:58.142731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

515d9932128a113dcbd4e65af18de62b270ec1f6677e8425c1b404ff1b2c5226

Aliases

arxiv: 1505.04228 · arxiv_version: 1505.04228v1 · doi: 10.48550/arxiv.1505.04228 · pith_short_12: KFOZSMQSRIIT · pith_short_16: KFOZSMQSRIIT3S6U · pith_short_8: KFOZSMQS

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/KFOZSMQSRIIT3S6U4ZNPDDPGFM \
  | 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: 515d9932128a113dcbd4e65af18de62b270ec1f6677e8425c1b404ff1b2c5226

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ec05e9ab8f81b48ea99c50d1fb267e6525801f81825d430b6aef34be358258b",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.PE",
    "submitted_at": "2015-05-16T01:25:19Z",
    "title_canon_sha256": "b708850790097e6f2f7be340f562d7942802cf27735b711bb608114cda01c8b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04228",
    "kind": "arxiv",
    "version": 1
  }
}