Pith Number

pith:AFYMCLHZ

pith:2015:AFYMCLHZH7E5EVTCCUBKIKBXHG

not attested not anchored not stored refs pending

A bound for Dickson's lemma

Helmut Schwichtenberg, Josef Berger

arxiv:1503.03325 v2 · 2015-03-11 · math.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AFYMCLHZH7E5EVTCCUBKIKBXHG}

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	2026-05-17T23:51:23.935300Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0170c12cf93fc9d256621502a42837399b411ce79cd2c4ad57bd53e9aa0aaccb

Aliases

arxiv: 1503.03325 · arxiv_version: 1503.03325v2 · doi: 10.48550/arxiv.1503.03325 · pith_short_12: AFYMCLHZH7E5 · pith_short_16: AFYMCLHZH7E5EVTC · pith_short_8: AFYMCLHZ

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/AFYMCLHZH7E5EVTCCUBKIKBXHG \
  | 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: 0170c12cf93fc9d256621502a42837399b411ce79cd2c4ad57bd53e9aa0aaccb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d78ff7e10988205036199ce116c2e6c19390f3af6218e38bed4cd292c70c1d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2015-03-11T13:34:10Z",
    "title_canon_sha256": "d655e2f7e13ed4e66e3ef6a67bd86bb1d680fc5899c09caa1cb15afb721ea812"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.03325",
    "kind": "arxiv",
    "version": 2
  }
}