Pith Number

pith:4IYEQF7U

pith:2025:4IYEQF7UBAMJACB6XLARJGEUE2

not attested not anchored not stored refs pending

On the Chromatic Number of Grassmann Graphs

Jozefien D'haeseleer, Vladislav Taranchuk

arxiv:2505.22055 v1 · 2025-05-28 · 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{4IYEQF7UBAMJACB6XLARJGEUE2}

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.

Cited by

1 paper in Pith

On Reed-Muller subcodes, Grassmannian partitions and sum-free functions

Receipt and verification

First computed	2026-07-05T11:11:08.875933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2304817f4081890083ebac114989426abda8c0b5d42c08cbdccb1d011cac695

Aliases

arxiv: 2505.22055 · arxiv_version: 2505.22055v1 · doi: 10.48550/arxiv.2505.22055 · pith_short_12: 4IYEQF7UBAMJ · pith_short_16: 4IYEQF7UBAMJACB6 · pith_short_8: 4IYEQF7U

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/4IYEQF7UBAMJACB6XLARJGEUE2 \
  | 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: e2304817f4081890083ebac114989426abda8c0b5d42c08cbdccb1d011cac695

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "341170400c64950b442cbebca2c16b34b4ab6f0378fc21bcef3da945f54589f6",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-05-28T07:24:56Z",
    "title_canon_sha256": "54ad66e5125ca22bd86d5ada9a8bc8e3d435648ceb6eb2aa13fc327c21c7974a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22055",
    "kind": "arxiv",
    "version": 1
  }
}