Pith Number

pith:SGQ7SJ5E

pith:2013:SGQ7SJ5EY2774SP55NCTGFZRKA

not attested not anchored not stored refs pending

Proof-Pattern Recognition and Lemma Discovery in ACL2

Ekaterina Komendantskaya, Ewen Maclean, J\'onathan Heras, Moa Johansson

arxiv:1308.1780 v2 · 2013-08-08 · 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{SGQ7SJ5EY2774SP55NCTGFZRKA}

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	2026-05-18T03:10:26.170035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91a1f927a4c6bffe49fdeb45331731500883d411f313c0d58a3795e9c7e9385e

Aliases

arxiv: 1308.1780 · arxiv_version: 1308.1780v2 · doi: 10.48550/arxiv.1308.1780 · pith_short_12: SGQ7SJ5EY277 · pith_short_16: SGQ7SJ5EY2774SP5 · pith_short_8: SGQ7SJ5E

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/SGQ7SJ5EY2774SP55NCTGFZRKA \
  | 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: 91a1f927a4c6bffe49fdeb45331731500883d411f313c0d58a3795e9c7e9385e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a5fcacfa938521b3d19f0f8522fae244a619ea0a3a2c4ec9ca2671d2fc622c0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-08-08T08:17:46Z",
    "title_canon_sha256": "f9e2acc57b79aaaaec542c0449c42c5bb842c9c4cc1095344bdb607d57d3fdfc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.1780",
    "kind": "arxiv",
    "version": 2
  }
}