Pith Number

pith:NRIKYHRD

pith:2025:NRIKYHRDLSXDXK74XCKEKNUMMO

not attested not anchored not stored refs pending

Mathematical Knowledge Bases as Grammar-Compressed Proof Terms: Exploring Metamath Proof Structures

Christoph Wernhard, Zsolt Zombori

arxiv:2505.12305 v2 · 2025-05-18 · cs.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{NRIKYHRDLSXDXK74XCKEKNUMMO}

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

Generating Theorems by Generating Proof Structures

Receipt and verification

First computed	2026-07-05T11:19:52.692479Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c50ac1e235cae3babfcb89445368c63bfa938fbab796462c0606fd07df80d26

Aliases

arxiv: 2505.12305 · arxiv_version: 2505.12305v2 · doi: 10.48550/arxiv.2505.12305 · pith_short_12: NRIKYHRDLSXD · pith_short_16: NRIKYHRDLSXDXK74 · pith_short_8: NRIKYHRD

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/NRIKYHRDLSXDXK74XCKEKNUMMO \
  | 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: 6c50ac1e235cae3babfcb89445368c63bfa938fbab796462c0606fd07df80d26

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d388e3149122432af7bd1648eecb53efb1aec0390a62a597dbf1b63b625f1a48",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-05-18T08:38:37Z",
    "title_canon_sha256": "79998780eb7bcd4c8eea8c3e8c1bb69f40204d81042f9c4c1f620b458a63e42a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.12305",
    "kind": "arxiv",
    "version": 2
  }
}