Pith Number

pith:FECCQTCX

pith:2019:FECCQTCXD4N27MLWKZBCTO7FYL

not attested not anchored not stored refs pending

Should we test the model assumptions before running a model-based test?

Christian Hennig, M. Iqbal Shamsudheen

arxiv:1908.02218 v5 · 2019-08-06 · 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{FECCQTCXD4N27MLWKZBCTO7FYL}

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	2026-07-05T06:01:32.504876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2904284c571f1bafb176564229bbe5c2f7d2ea1469036325b87e5eff4adc043e

Aliases

arxiv: 1908.02218 · arxiv_version: 1908.02218v5 · doi: 10.48550/arxiv.1908.02218 · pith_short_12: FECCQTCXD4N2 · pith_short_16: FECCQTCXD4N27MLW · pith_short_8: FECCQTCX

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/FECCQTCXD4N27MLWKZBCTO7FYL \
  | 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: 2904284c571f1bafb176564229bbe5c2f7d2ea1469036325b87e5eff4adc043e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db21e20f54eb48720397e97d924b4e21483e09711bfac1128aeb9d8298f7cc33",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2019-08-06T15:43:01Z",
    "title_canon_sha256": "5940ca1fdd65c17e1fcd5e15e6e522eb2be3d7da15a8b6300815ff5765693758"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.02218",
    "kind": "arxiv",
    "version": 5
  }
}