Pith Number

pith:AF6ACTOA

pith:2018:AF6ACTOAQOGCPTORPQ3I4T7EKJ

not attested not anchored not stored refs pending

In absence of long chordless cycles, large tree-width becomes a local phenomenon

Daniel Wei{\ss}auer

arxiv:1803.02703 v1 · 2018-03-07 · 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{AF6ACTOAQOGCPTORPQ3I4T7EKJ}

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	2026-05-18T00:21:49.456612Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

017c014dc0838c27cdd17c368e4fe452696dd4ccaa7d9db8a3513eee7c1b702a

Aliases

arxiv: 1803.02703 · arxiv_version: 1803.02703v1 · doi: 10.48550/arxiv.1803.02703 · pith_short_12: AF6ACTOAQOGC · pith_short_16: AF6ACTOAQOGCPTOR · pith_short_8: AF6ACTOA

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/AF6ACTOAQOGCPTORPQ3I4T7EKJ \
  | 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: 017c014dc0838c27cdd17c368e4fe452696dd4ccaa7d9db8a3513eee7c1b702a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60b303a93d14ba0205f60b340e258302a956c7c01c1e2c059c292731d9e9bed0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-03-07T15:06:27Z",
    "title_canon_sha256": "6d5202a6ede321c7185eb1a61fa186a9675e24c03f7ade510d0426bc3d5f231b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02703",
    "kind": "arxiv",
    "version": 1
  }
}