Pith Number

pith:LDBGFDED

pith:2015:LDBGFDEDDDUC5FBZHRPPXXRP4G

not attested not anchored not stored refs pending

Parikh matrices and Parikh Rewriting Systems

Wen Chean Teh

arxiv:1506.06476 v1 · 2015-06-22 · cs.FL · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LDBGFDEDDDUC5FBZHRPPXXRP4G}

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	2026-05-18T01:09:58.005089Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58c2628c8318e82e94393c5efbde2fe190e50be099893ae506cd537ca2e2640d

Aliases

arxiv: 1506.06476 · arxiv_version: 1506.06476v1 · doi: 10.48550/arxiv.1506.06476 · pith_short_12: LDBGFDEDDDUC · pith_short_16: LDBGFDEDDDUC5FBZ · pith_short_8: LDBGFDED

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/LDBGFDEDDDUC5FBZHRPPXXRP4G \
  | 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: 58c2628c8318e82e94393c5efbde2fe190e50be099893ae506cd537ca2e2640d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8eb84ef2541844a251b025bd6ab4a0b8c4f91f5746f95f882dc109a0871ec409",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2015-06-22T06:09:19Z",
    "title_canon_sha256": "f3f4cdcde82dc03f1c2b1b1fd924addc5bdd54be8d1c1b42e05fc1a67ae25eaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.06476",
    "kind": "arxiv",
    "version": 1
  }
}