Pith Number

pith:WMFNEPKI

pith:2012:WMFNEPKI5LBXK76F7DT5XR4ZPV

not attested not anchored not stored refs pending

An Atypical Survey of Typical-Case Heuristic Algorithms

Lane A. Hemaspaandra, Ryan Williams

arxiv:1210.8099 v1 · 2012-10-30 · cs.CC · cs.AI · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WMFNEPKI5LBXK76F7DT5XR4ZPV}

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	2026-05-18T03:41:57.047258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b30ad23d48eac3757fc5f8e7dbc7997d51404cb5bdb1931b78d2ba482161c11d

Aliases

arxiv: 1210.8099 · arxiv_version: 1210.8099v1 · doi: 10.48550/arxiv.1210.8099 · pith_short_12: WMFNEPKI5LBX · pith_short_16: WMFNEPKI5LBXK76F · pith_short_8: WMFNEPKI

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/WMFNEPKI5LBXK76F7DT5XR4ZPV \
  | 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: b30ad23d48eac3757fc5f8e7dbc7997d51404cb5bdb1931b78d2ba482161c11d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9f50bec0d48c306526a5b4c7e094d2e9cb77ddc71f3937ca5f4aad96a9acad0",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2012-10-30T17:50:49Z",
    "title_canon_sha256": "0f56fc60226cd21f750dbf9dadc5dfd263f17a1066eda366e49298db0c523f52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.8099",
    "kind": "arxiv",
    "version": 1
  }
}