Pith Number

pith:ZNIFPNLI

pith:2018:ZNIFPNLI2JWVA3ICCGVNE44AMQ

not attested not anchored not stored refs pending

A tractable class of binary VCSPs via M-convex intersection

Hiroshi Hirai, Kazuo Murota, Stanislav Zivny, Yuni Iwamasa

arxiv:1801.02199 v2 · 2018-01-07 · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZNIFPNLI2JWVA3ICCGVNE44AMQ}

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	2026-05-17T23:40:24.318335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb5057b568d26d506d0211aad2738064253b39e54cf81d06ee75c942cdd137a0

Aliases

arxiv: 1801.02199 · arxiv_version: 1801.02199v2 · doi: 10.48550/arxiv.1801.02199 · pith_short_12: ZNIFPNLI2JWV · pith_short_16: ZNIFPNLI2JWVA3IC · pith_short_8: ZNIFPNLI

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/ZNIFPNLI2JWVA3ICCGVNE44AMQ \
  | 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: cb5057b568d26d506d0211aad2738064253b39e54cf81d06ee75c942cdd137a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db3e4fded5bfa3d0c331ec65c922601a531c9a6fdd9dfe3171eaa37c8a83b84c",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-01-07T15:38:31Z",
    "title_canon_sha256": "015ac67410fd4eaeeb7d87236bdf2a35fa0030eab27feaf539aaed65236e16a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.02199",
    "kind": "arxiv",
    "version": 2
  }
}