Pith Number

pith:VGAPTKWL

pith:2017:VGAPTKWLXJ54I3MYYDK5CU2HN4

not attested not anchored not stored refs pending

A Simple Algorithm for Computing a Cycle Separator

Amir Nayyeri, Sariel Har-Peled

arxiv:1709.08122 v2 · 2017-09-23 · cs.CG · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VGAPTKWLXJ54I3MYYDK5CU2HN4}

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	2026-05-18T00:25:39.133379Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a980f9aacbba7bc46d98c0d5d153476f21dc65e39e693e97fe48a1c07066ac41

Aliases

arxiv: 1709.08122 · arxiv_version: 1709.08122v2 · doi: 10.48550/arxiv.1709.08122 · pith_short_12: VGAPTKWLXJ54 · pith_short_16: VGAPTKWLXJ54I3MY · pith_short_8: VGAPTKWL

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/VGAPTKWLXJ54I3MYYDK5CU2HN4 \
  | 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: a980f9aacbba7bc46d98c0d5d153476f21dc65e39e693e97fe48a1c07066ac41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b5a3e4bd87f3a27da05e60296179c83cb0394036a23a7c51fae4fd6de93900d",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2017-09-23T22:13:27Z",
    "title_canon_sha256": "0044399907953a107985cab9e3b882369d4f489a36636310674029bcf0f1ee9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08122",
    "kind": "arxiv",
    "version": 2
  }
}