Pith Number

pith:ENEGJKDZ

pith:2011:ENEGJKDZR6IS2GZ3U5QIEJHTXP

not attested not anchored not stored refs pending

Parameterised Pushdown Systems with Non-Atomic Writes

Matthew Hague

arxiv:1109.6264 v1 · 2011-09-28 · cs.FL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ENEGJKDZR6IS2GZ3U5QIEJHTXP}

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	2026-05-18T04:12:09.445437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

234864a8798f912d1b3ba7608224f3bbed44c634b4632de9fddd7557fd3b29e9

Aliases

arxiv: 1109.6264 · arxiv_version: 1109.6264v1 · doi: 10.48550/arxiv.1109.6264 · pith_short_12: ENEGJKDZR6IS · pith_short_16: ENEGJKDZR6IS2GZ3 · pith_short_8: ENEGJKDZ

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/ENEGJKDZR6IS2GZ3U5QIEJHTXP \
  | 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: 234864a8798f912d1b3ba7608224f3bbed44c634b4632de9fddd7557fd3b29e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3eb4dbc1ce95f6d59f9258cb04a3aabbdb2b519a922c885dda7555561a11a250",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-09-28T16:41:15Z",
    "title_canon_sha256": "98cea434387d35ed43eff7d1a3d2f118b579795b7945cd6bd581e399e5168e93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.6264",
    "kind": "arxiv",
    "version": 1
  }
}