Pith Number

pith:6NCYF4JI

pith:2026:6NCYF4JICHL3ITV4RMDIQD6HUH

not attested not anchored not stored refs pending

Connectivity for slice-projections of connected polymatroids

Xian'an Jin, Xiaxia Guan

arxiv:2606.22819 v1 · 2026-06-22 · 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{6NCYF4JICHL3ITV4RMDIQD6HUH}

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	2026-06-23T02:14:00.311349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f34582f12811d7b44ebc8b06880fc7a1da0cf2f97921f7ad3502d7ad5ed2f407

Aliases

arxiv: 2606.22819 · arxiv_version: 2606.22819v1 · doi: 10.48550/arxiv.2606.22819 · pith_short_12: 6NCYF4JICHL3 · pith_short_16: 6NCYF4JICHL3ITV4 · pith_short_8: 6NCYF4JI

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/6NCYF4JICHL3ITV4RMDIQD6HUH \
  | 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: f34582f12811d7b44ebc8b06880fc7a1da0cf2f97921f7ad3502d7ad5ed2f407

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e03e520a7d21009af52f041db904e918f1fc5509943274996e694e92a7a96601",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-06-22T03:51:01Z",
    "title_canon_sha256": "8b81e56da060735ea73a8a5ad04aa2cbd5ac13719c4f9416c465b6063872ae4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.22819",
    "kind": "arxiv",
    "version": 1
  }
}