Pith Number

pith:IVRMEHCC

pith:2025:IVRMEHCCNAKVWFLMHPNSZKORSS

not attested not anchored not stored refs pending

Small hitting sets for longest paths and cycles

Paul Wollan, Raphael Steiner, Sergey Norin, Stephan Thomass\'e

arxiv:2505.08634 v2 · 2025-05-13 · 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{IVRMEHCCNAKVWFLMHPNSZKORSS}

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	2026-07-05T11:48:03.459008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4562c21c4268155b156c3bdb2ca9d194b6b0ded645b16fa119ea5c724ebdc241

Aliases

arxiv: 2505.08634 · arxiv_version: 2505.08634v2 · doi: 10.48550/arxiv.2505.08634 · pith_short_12: IVRMEHCCNAKV · pith_short_16: IVRMEHCCNAKVWFLM · pith_short_8: IVRMEHCC

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/IVRMEHCCNAKVWFLMHPNSZKORSS \
  | 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: 4562c21c4268155b156c3bdb2ca9d194b6b0ded645b16fa119ea5c724ebdc241

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ae9d0517befa915dabc7c65f959faeeb2d75b3db4f7fd86021e666692483f4b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2025-05-13T14:52:55Z",
    "title_canon_sha256": "c1cc59a9e4622fa89db0d796ac6faf6eac7e6952322e2e6707068caf8e047387"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.08634",
    "kind": "arxiv",
    "version": 2
  }
}