Pith Number

pith:Z5YAUMMM

pith:2016:Z5YAUMMMSKFFI2MEVQMXUVLWPX

not attested not anchored not stored refs pending

Formal Proof of the Weak Goodstein Theorem

Jean-Raymond Abrial

arxiv:1701.01673 v1 · 2016-11-29 · cs.SE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z5YAUMMMSKFFI2MEVQMXUVLWPX}

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.

Cited by

1 paper in Pith

Jean-Raymond Abrial: A Scientific Biography of a Formal Methods Pioneer

Receipt and verification

First computed	2026-05-18T00:53:16.252381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf700a318c928a546984ac197a55767dd09f5c130f86366f057f7d74f93a5542

Aliases

arxiv: 1701.01673 · arxiv_version: 1701.01673v1 · doi: 10.48550/arxiv.1701.01673 · pith_short_12: Z5YAUMMMSKFF · pith_short_16: Z5YAUMMMSKFFI2ME · pith_short_8: Z5YAUMMM

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/Z5YAUMMMSKFFI2MEVQMXUVLWPX \
  | 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: cf700a318c928a546984ac197a55767dd09f5c130f86366f057f7d74f93a5542

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f2be87e2bca722f9cc0a4a58ec662867708d4897516c0155d6dd1cf1ede71a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SE",
    "submitted_at": "2016-11-29T11:00:40Z",
    "title_canon_sha256": "863e5a0fc1854b439b97155db8b2e0619fbd9611e16e3203c002144584a6ab43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.01673",
    "kind": "arxiv",
    "version": 1
  }
}