Pith Number

pith:2DEGS2IN

pith:2013:2DEGS2INBN7U5733XUAIYXAWCK

not attested not anchored not stored refs pending

(Un)Decidability Results for Word Equations with Length and Regular Expression Constraints

Armando Solar-Lezama, Martin Rinard, Mia Minnes, Vijay Ganesh

arxiv:1306.6054 v1 · 2013-06-25 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2DEGS2INBN7U5733XUAIYXAWCK}

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	2026-05-18T03:19:57.908623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0c869690d0b7f4eff7bbd008c5c16128d111cd0b0fdd6065d07f4726d43de5e

Aliases

arxiv: 1306.6054 · arxiv_version: 1306.6054v1 · doi: 10.48550/arxiv.1306.6054 · pith_short_12: 2DEGS2INBN7U · pith_short_16: 2DEGS2INBN7U5733 · pith_short_8: 2DEGS2IN

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/2DEGS2INBN7U5733XUAIYXAWCK \
  | 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: d0c869690d0b7f4eff7bbd008c5c16128d111cd0b0fdd6065d07f4726d43de5e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "088e3baca81ea24da55cef51b51cf6d80184ed158e90f3f8b8e7219c7ab8eebd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2013-06-25T18:25:28Z",
    "title_canon_sha256": "c628286cb1b10bcfdab1798b9e330831a2942000878c5e900899b6688bb9cf07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6054",
    "kind": "arxiv",
    "version": 1
  }
}