Pith Number

pith:7MQ6G754

pith:2017:7MQ6G754I3YJQKHUZNCIMPFIR4

not attested not anchored not stored refs pending

Parikh Image of Pushdown Automata

Elena Guti\'errez, Pierre Ganty

arxiv:1706.08315 v1 · 2017-06-26 · 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{7MQ6G754I3YJQKHUZNCIMPFIR4}

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	2026-05-18T00:41:42.897062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb21e37fbc46f09828f4cb44863ca88f213597fda71b7c070e269c84046833fc

Aliases

arxiv: 1706.08315 · arxiv_version: 1706.08315v1 · doi: 10.48550/arxiv.1706.08315 · pith_short_12: 7MQ6G754I3YJ · pith_short_16: 7MQ6G754I3YJQKHU · pith_short_8: 7MQ6G754

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/7MQ6G754I3YJQKHUZNCIMPFIR4 \
  | 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: fb21e37fbc46f09828f4cb44863ca88f213597fda71b7c070e269c84046833fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a461dc1e008d3ebefff0ed5fd4881f646588b27607a924c895961f5c710c3e25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2017-06-26T10:51:04Z",
    "title_canon_sha256": "edbd5ac1cf229011aa7f7ed38b6fb45bc844a45ae467d58df3d9b3fd8f0207da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.08315",
    "kind": "arxiv",
    "version": 1
  }
}