Pith Number

pith:ZD2OSGPY

pith:2011:ZD2OSGPYH7KYEAGLQTNMY4S6YD

not attested not anchored not stored refs pending

Two-Way Automata Making Choices Only at the Endmarkers

Bruno Guillon, Giovanni Pighizzini, Viliam Geffert

arxiv:1110.1263 v1 · 2011-10-06 · cs.FL · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZD2OSGPYH7KYEAGLQTNMY4S6YD}

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	2026-05-18T04:11:32.406234Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8f4e919f83fd58200cb84dacc725ec0f2c6ebc518e85b5bd038c16f41195f9e

Aliases

arxiv: 1110.1263 · arxiv_version: 1110.1263v1 · doi: 10.48550/arxiv.1110.1263 · pith_short_12: ZD2OSGPYH7KY · pith_short_16: ZD2OSGPYH7KYEAGL · pith_short_8: ZD2OSGPY

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/ZD2OSGPYH7KYEAGLQTNMY4S6YD \
  | 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: c8f4e919f83fd58200cb84dacc725ec0f2c6ebc518e85b5bd038c16f41195f9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f0a174ded10a4bff3eaf0bca07c8705aabd4dc7315c60dbbdc98e40cb1c8d3e6",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2011-10-06T13:52:34Z",
    "title_canon_sha256": "64757b9d8bdb457e4010f9cf20424b7890d09db62ed4bc67180f90134e28c282"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.1263",
    "kind": "arxiv",
    "version": 1
  }
}