Pith Number

pith:KSK63XDP

pith:2023:KSK63XDP3BRYIMWWNRMWTZWB5L

not attested not anchored not stored refs pending

Induced subgraphs and tree decompositions X. Towards logarithmic treewidth for even-hole-free graphs

Bogdan Alecu, Maria Chudnovsky, Sepehr Hajebi, Sophie Spirkl, Tara Abrishami

arxiv:2307.13684 v3 · 2023-07-25 · 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{KSK63XDP3BRYIMWWNRMWTZWB5L}

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	2026-07-05T10:43:33.715812Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5495eddc6fd8638432d66c5969e6c1eac3af1c459ca73a11b2fbf8c4fed2680e

Aliases

arxiv: 2307.13684 · arxiv_version: 2307.13684v3 · doi: 10.48550/arxiv.2307.13684 · pith_short_12: KSK63XDP3BRY · pith_short_16: KSK63XDP3BRYIMWW · pith_short_8: KSK63XDP

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/KSK63XDP3BRYIMWWNRMWTZWB5L \
  | 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: 5495eddc6fd8638432d66c5969e6c1eac3af1c459ca73a11b2fbf8c4fed2680e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "25e85c85a2a6b609ccd4c7204a19b2b3ed08d73d7f1479a3fcd3d302c9a10441",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2023-07-25T17:42:53Z",
    "title_canon_sha256": "a40add8fd24ef63b7d2fa893daef005ccc7f691a2761f20a6e27e650ec78661f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.13684",
    "kind": "arxiv",
    "version": 3
  }
}