Pith Number

pith:IFMNCJOO

pith:2017:IFMNCJOOYT7B32JT4UGU67EKIA

not attested not anchored not stored refs pending

The Hard Problems Are Almost Everywhere For Random CNF-XOR Formulas

Jeffrey M. Dudek, Kuldeep S. Meel, Moshe Y. Vardi

arxiv:1710.06378 v1 · 2017-10-17 · cs.DM · 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{IFMNCJOOYT7B32JT4UGU67EKIA}

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	2026-05-18T00:32:36.933229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4158d125cec4fe1de933e50d4f7c8a402f46b53915fdb7320e8b8bdfa0083f81

Aliases

arxiv: 1710.06378 · arxiv_version: 1710.06378v1 · doi: 10.48550/arxiv.1710.06378 · pith_short_12: IFMNCJOOYT7B · pith_short_16: IFMNCJOOYT7B32JT · pith_short_8: IFMNCJOO

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/IFMNCJOOYT7B32JT4UGU67EKIA \
  | 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: 4158d125cec4fe1de933e50d4f7c8a402f46b53915fdb7320e8b8bdfa0083f81

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e5a39eac06d8f89c444ac7750dd2dc834fe4ed0142012e1816b007130d513f0d",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2017-10-17T16:43:46Z",
    "title_canon_sha256": "58a4ff2f6b7a8b3bacf551981eab8fc1dd1929d9f39d7cf77f14f0defd662d44"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.06378",
    "kind": "arxiv",
    "version": 1
  }
}