Pith Number

pith:UJIKKJLW

pith:2021:UJIKKJLWWLR6TLQX3RW3RAUZ7B

not attested not anchored not stored refs pending

A note on Matching-Cut in $P_t$-free Graphs

Carl Feghali

arxiv:2111.12011 v3 · 2021-11-23 · math.CO · cs.DM · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UJIKKJLWWLR6TLQX3RW3RAUZ7B}

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	2026-07-05T04:23:22.508905Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a250a52576b2e3e9ae17dc6db88299f86e6a4a49fa62f6145df2112a905d278e

Aliases

arxiv: 2111.12011 · arxiv_version: 2111.12011v3 · doi: 10.48550/arxiv.2111.12011 · pith_short_12: UJIKKJLWWLR6 · pith_short_16: UJIKKJLWWLR6TLQX · pith_short_8: UJIKKJLW

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/UJIKKJLWWLR6TLQX3RW3RAUZ7B \
  | 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: a250a52576b2e3e9ae17dc6db88299f86e6a4a49fa62f6145df2112a905d278e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0704033322fe2eedc0554abdb7865e3022fafe233765442030feaca4db0f687",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2021-11-23T17:21:26Z",
    "title_canon_sha256": "6f3419f0e2fd742ab93d3b283f7079fcfc3ef37a0610ea61ebba39084c74938c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.12011",
    "kind": "arxiv",
    "version": 3
  }
}