Pith Number

pith:XTFO3HF4

pith:2014:XTFO3HF4XBTJALN3D5RFYEQFI4

not attested not anchored not stored refs pending

Constant Rank Bimatrix Games are PPAD-hard

Ruta Mehta

arxiv:1402.3350 v2 · 2014-02-14 · cs.GT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XTFO3HF4XBTJALN3D5RFYEQFI4}

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	2026-05-18T02:55:49.539791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bccaed9cbcb866902dbb1f625c12054737d91b299d14b47e1d21f3b1326417ed

Aliases

arxiv: 1402.3350 · arxiv_version: 1402.3350v2 · doi: 10.48550/arxiv.1402.3350 · pith_short_12: XTFO3HF4XBTJ · pith_short_16: XTFO3HF4XBTJALN3 · pith_short_8: XTFO3HF4

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/XTFO3HF4XBTJALN3D5RFYEQFI4 \
  | 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: bccaed9cbcb866902dbb1f625c12054737d91b299d14b47e1d21f3b1326417ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc5ca8dff5b820a727b43ba7be1d453b7e94719c424010966fd7eca8776df877",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2014-02-14T02:32:42Z",
    "title_canon_sha256": "65a22f28526034d4bb1ed8939b134d15fee9c7ddc58d6c922c56556266ae0edb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.3350",
    "kind": "arxiv",
    "version": 2
  }
}