Pith Number

pith:3PMVAYF4

pith:2026:3PMVAYF4Z2XBKGIN3MHLTPRX4G

not attested not anchored not stored refs pending

Local Search on Vertex Coloring for Bipartite Graphs

Johanna Gasse

arxiv:2606.09509 v1 · 2026-06-08 · cs.NE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3PMVAYF4Z2XBKGIN3MHLTPRX4G}

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	2026-06-09T02:08:52.599165Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dbd95060bcceae15190ddb0eb9be37e1868d30ac267d4c81c5323456f605df67

Aliases

arxiv: 2606.09509 · arxiv_version: 2606.09509v1 · doi: 10.48550/arxiv.2606.09509 · pith_short_12: 3PMVAYF4Z2XB · pith_short_16: 3PMVAYF4Z2XBKGIN · pith_short_8: 3PMVAYF4

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/3PMVAYF4Z2XBKGIN3MHLTPRX4G \
  | 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: dbd95060bcceae15190ddb0eb9be37e1868d30ac267d4c81c5323456f605df67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d07c7c695af0063ddae06498ce93eafa1d421a23ba19af7fe99813ea94e9cc5e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.NE",
    "submitted_at": "2026-06-08T14:02:43Z",
    "title_canon_sha256": "b8a1252df26be0dd621b80df329b0ca05092eb2c2265fe9bdb691f097d74e6a2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09509",
    "kind": "arxiv",
    "version": 1
  }
}