Pith Number

pith:GMLTBMZ3

pith:2026:GMLTBMZ3KQYSQKMKRON3JI3GSN

not attested not anchored not stored refs pending

Conformability is NP-complete, even on connected regular graphs

J\'ozsef Pint\'er

arxiv:2606.21534 v1 · 2026-06-19 · math.CO · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GMLTBMZ3KQYSQKMKRON3JI3GSN}

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	2026-06-23T01:13:13.728543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

331730b33b543128298a8b9bb4a366934fa288f3299a37491e92cdfaa19546d6

Aliases

arxiv: 2606.21534 · arxiv_version: 2606.21534v1 · doi: 10.48550/arxiv.2606.21534 · pith_short_12: GMLTBMZ3KQYS · pith_short_16: GMLTBMZ3KQYSQKMK · pith_short_8: GMLTBMZ3

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/GMLTBMZ3KQYSQKMKRON3JI3GSN \
  | 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: 331730b33b543128298a8b9bb4a366934fa288f3299a37491e92cdfaa19546d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "568429da7d083150f7921f217a6b197e4b6e8e8a8604baef7a2103a77377066d",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2026-06-19T15:33:30Z",
    "title_canon_sha256": "acf23d742aeb2259f6cbc53925163f49b650a57e2b3865ec91f972ba96ab1f07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.21534",
    "kind": "arxiv",
    "version": 1
  }
}