Pith Number

pith:7FXXXAKX

pith:2026:7FXXXAKXSXVHJLFV72I4O5C67D

not attested not anchored not stored refs pending

Predicting fixed-sample test decisions enables anytime-valid inference

Chris Holmes, Stephen Walker

arxiv:2602.13872 v2 · 2026-02-14 · stat.ME · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FXXXAKXSXVHJLFV72I4O5C67D}

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	2026-07-13T01:18:02.650201Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f96f7b815795ea74acb5fe91c7745ef8dbbb5e585ab58075508a9993c50584d3

Aliases

arxiv: 2602.13872 · arxiv_version: 2602.13872v2 · doi: 10.48550/arxiv.2602.13872 · pith_short_12: 7FXXXAKXSXVH · pith_short_16: 7FXXXAKXSXVHJLFV · pith_short_8: 7FXXXAKX

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/7FXXXAKXSXVHJLFV72I4O5C67D \
  | 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: f96f7b815795ea74acb5fe91c7745ef8dbbb5e585ab58075508a9993c50584d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d4dd97be79c559df8672bf74b70bbc043b0157f53f9814c1e932dc72b997b59",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2026-02-14T20:17:51Z",
    "title_canon_sha256": "c6f3e285499270a9a1683837f1c7039f95878ef384680514952562c97a7b854c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.13872",
    "kind": "arxiv",
    "version": 2
  }
}