Pith Number

pith:Z2BT67UF

pith:2026:Z2BT67UFWS4KKNFSVYLQZYWLH7

not attested not anchored not stored refs pending

Solving Imperfect-Recall Games via Sum-of-Squares Optimization

Antonios Varvitsiotis, Rui Zheng, Ryann Sim

arxiv:2602.21722 v2 · 2026-02-25 · 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{Z2BT67UFWS4KKNFSVYLQZYWLH7}

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	2026-05-26T01:03:26.326731Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce833f7e85b4b8a534b2ae170ce2cb3fc9b6390716c8473426944a076aa5adac

Aliases

arxiv: 2602.21722 · arxiv_version: 2602.21722v2 · doi: 10.48550/arxiv.2602.21722 · pith_short_12: Z2BT67UFWS4K · pith_short_16: Z2BT67UFWS4KKNFS · pith_short_8: Z2BT67UF

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/Z2BT67UFWS4KKNFSVYLQZYWLH7 \
  | 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: ce833f7e85b4b8a534b2ae170ce2cb3fc9b6390716c8473426944a076aa5adac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0639ae43ec1bd61c5d1cdd9d13a1de45a3b3e33c4c832ece458b0efbd44868d9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.GT",
    "submitted_at": "2026-02-25T09:28:46Z",
    "title_canon_sha256": "7437fee4d043bffdfb3412c156dc918575ff94348f4e98631fcefa4d7d8e2d2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.21722",
    "kind": "arxiv",
    "version": 2
  }
}