Pith Number

pith:7DCB3AEZ

pith:2017:7DCB3AEZNKZ5P3VSZ2IC2H7AHS

not attested not anchored not stored refs pending

Random CNFs are Hard for Cutting Planes

Denis Pankratov, Noah Fleming, Robert Robere, Toniann Pitassi

arxiv:1703.02469 v1 · 2017-03-07 · 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{7DCB3AEZNKZ5P3VSZ2IC2H7AHS}

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	2026-05-18T00:49:19.870561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f8c41d80996ab3d7eeb2ce902d1fe03c81187b67d4438c7d17f6043f90586447

Aliases

arxiv: 1703.02469 · arxiv_version: 1703.02469v1 · doi: 10.48550/arxiv.1703.02469 · pith_short_12: 7DCB3AEZNKZ5 · pith_short_16: 7DCB3AEZNKZ5P3VS · pith_short_8: 7DCB3AEZ

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/7DCB3AEZNKZ5P3VSZ2IC2H7AHS \
  | 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: f8c41d80996ab3d7eeb2ce902d1fe03c81187b67d4438c7d17f6043f90586447

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3481a173faaede56128194993f3238fc5fbaf19b37002665f35bc48657b28a8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2017-03-07T16:50:43Z",
    "title_canon_sha256": "0a5c97036ab5392e6d9b057a404293473fd53d49b996c278f1213560ab414f94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02469",
    "kind": "arxiv",
    "version": 1
  }
}