Pith Number

pith:TL5EVE7R

pith:2015:TL5EVE7RVJR77T5OX5BTSD3M2C

not attested not anchored not stored refs pending

Edit Distance for Pushdown Automata

Jan Otop, Krishnendu Chatterjee, Rasmus Ibsen-Jensen, Thomas A. Henzinger

arxiv:1504.08259 v4 · 2015-04-30 · 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{TL5EVE7RVJR77T5OX5BTSD3M2C}

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	2026-05-17T23:51:23.915054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9afa4a93f1aa63ffcfaebf43390f6cd0851967ec6b762517f8a27d861a51ab29

Aliases

arxiv: 1504.08259 · arxiv_version: 1504.08259v4 · doi: 10.48550/arxiv.1504.08259 · pith_short_12: TL5EVE7RVJR7 · pith_short_16: TL5EVE7RVJR77T5O · pith_short_8: TL5EVE7R

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/TL5EVE7RVJR77T5OX5BTSD3M2C \
  | 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: 9afa4a93f1aa63ffcfaebf43390f6cd0851967ec6b762517f8a27d861a51ab29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1380094f6e7405e7b26cd41872d5cc975c8e77277e740863d408062fa97086f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.FL",
    "submitted_at": "2015-04-30T14:56:25Z",
    "title_canon_sha256": "69ea454fbc895e42c280d166b43b8ed4893f8c876b3e67133010718977056e59"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08259",
    "kind": "arxiv",
    "version": 4
  }
}