Pith Number

pith:7DPNC4H7

pith:2012:7DPNC4H7WTGDCEFBTPGWB24337

not attested not anchored not stored refs pending

Optimization hardness as transient chaos in an analog approach to constraint satisfaction

Maria Ercsey-Ravasz, Zoltan Toroczkai

arxiv:1208.0526 v1 · 2012-08-02 · cs.CC · cs.NE · math.DS · nlin.CD · physics.comp-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7DPNC4H7WTGDCEFBTPGWB24337}

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	2026-05-18T03:49:33.911155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8ded170ffb4cc3110a19bcd60eb9bdfde73bfddaa971f2fc9897c7922746c65

Aliases

arxiv: 1208.0526 · arxiv_version: 1208.0526v1 · doi: 10.48550/arxiv.1208.0526 · pith_short_12: 7DPNC4H7WTGD · pith_short_16: 7DPNC4H7WTGDCEFB · pith_short_8: 7DPNC4H7

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/7DPNC4H7WTGDCEFBTPGWB24337 \
  | 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: f8ded170ffb4cc3110a19bcd60eb9bdfde73bfddaa971f2fc9897c7922746c65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "754a2b302efe200b611c7d70d15254783453b07e5994c5c333008799e19129cf",
    "cross_cats_sorted": [
      "cs.NE",
      "math.DS",
      "nlin.CD",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-08-02T16:01:29Z",
    "title_canon_sha256": "5c9a8e97ce38262b6562c8c524505e2e9272da9c2b0172b9127ef378869dbdcd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0526",
    "kind": "arxiv",
    "version": 1
  }
}