Pith Number

pith:RFOK62KE

pith:2026:RFOK62KELGMPJNFYYVF236TU4W

not attested not anchored not stored refs pending

New invariants for rank metric codes, with applications to the classification of rank two semifields of order 256

Arani Paul, Jack Gilchrist, John Sheekey, Stefano Lia

arxiv:2605.23681 v1 · 2026-05-22 · 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{RFOK62KELGMPJNFYYVF236TU4W}

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	2026-05-25T02:02:25.848104Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

895caf69445998f4b4b8c54badfa74e5ac33ecb804246fecc6217ed83416ea31

Aliases

arxiv: 2605.23681 · arxiv_version: 2605.23681v1 · doi: 10.48550/arxiv.2605.23681 · pith_short_12: RFOK62KELGMP · pith_short_16: RFOK62KELGMPJNFY · pith_short_8: RFOK62KE

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/RFOK62KELGMPJNFYYVF236TU4W \
  | 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: 895caf69445998f4b4b8c54badfa74e5ac33ecb804246fecc6217ed83416ea31

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78dd444a116017b03d24eb3053a1396862dbb0124d591e77aae690453aa11501",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-05-22T14:30:18Z",
    "title_canon_sha256": "1bdb45409669202a5d115cc823d9d403a1cca3bc78a4380c7cbb9c6f14612d43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.23681",
    "kind": "arxiv",
    "version": 1
  }
}