Pith Number

pith:XTUJ6LRF

pith:2017:XTUJ6LRFRSLYIVQ7DWNB3EHPG4

not attested not anchored not stored refs pending

Generalized chordality, vertex separators and hyperbolicity on graphs

\'Alvaro Mart\'inez-P\'erez

arxiv:1708.06153 v1 · 2017-08-21 · 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{XTUJ6LRFRSLYIVQ7DWNB3EHPG4}

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	2026-05-18T00:37:43.068229Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bce89f2e258c9784561f1d9a1d90ef37101137d80296939a659e378747bb8551

Aliases

arxiv: 1708.06153 · arxiv_version: 1708.06153v1 · doi: 10.48550/arxiv.1708.06153 · pith_short_12: XTUJ6LRFRSLY · pith_short_16: XTUJ6LRFRSLYIVQ7 · pith_short_8: XTUJ6LRF

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/XTUJ6LRFRSLYIVQ7DWNB3EHPG4 \
  | 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: bce89f2e258c9784561f1d9a1d90ef37101137d80296939a659e378747bb8551

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ce480cf5ad02f512dd57e283d0dc90eb4f43d91bf4ffa56feef274df16d810f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-08-21T11:21:52Z",
    "title_canon_sha256": "12faaab45696645a7a27061eff09e2549e39df8c12dc7ef4246d384f4b194be8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1708.06153",
    "kind": "arxiv",
    "version": 1
  }
}