Pith Number

pith:AEKKDSP4

pith:2026:AEKKDSP4NKF3TTVGLXVLQ3BXHS

not attested not anchored not stored refs pending

Thrall's problem for two rows

Jang Soo Kim, JiSun Huh, Meesue Yoo, Woo-Seok Jung

arxiv:2605.17880 v1 · 2026-05-18 · 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{AEKKDSP4NKF3TTVGLXVLQ3BXHS}

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	2026-05-20T00:05:03.346561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0114a1c9fc6a8bb9cea65deab86c373c88aaf03380c4bad05fe004f17bb76a0a

Aliases

arxiv: 2605.17880 · arxiv_version: 2605.17880v1 · doi: 10.48550/arxiv.2605.17880 · pith_short_12: AEKKDSP4NKF3 · pith_short_16: AEKKDSP4NKF3TTVG · pith_short_8: AEKKDSP4

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/AEKKDSP4NKF3TTVGLXVLQ3BXHS \
  | 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: 0114a1c9fc6a8bb9cea65deab86c373c88aaf03380c4bad05fe004f17bb76a0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0990de2e3a151aac4e3dac304f2838f7af782a5b18e6ab0e4d716a479d3e8575",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-05-18T05:42:09Z",
    "title_canon_sha256": "b6eab86f376ccbd3f77ec89a4e30a9eea865c1b1c2dfdcc6745582ec04069e15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.17880",
    "kind": "arxiv",
    "version": 1
  }
}