Pith Number

pith:IQDANRI2

pith:2019:IQDANRI2G5D2S7MHFO672D66LS

not attested not anchored not stored refs pending

One hundred twenty-seven subsemilattices and planarity

G\'abor Cz\'edli

arxiv:1906.12003 v2 · 2019-06-28 · math.RA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IQDANRI2G5D2S7MHFO672D66LS}

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	2026-05-17T23:41:41.660433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

440606c51a3747a97d872bbdfd0fde5cbda99e62648e4c3d72f9e0518efbdc89

Aliases

arxiv: 1906.12003 · arxiv_version: 1906.12003v2 · doi: 10.48550/arxiv.1906.12003 · pith_short_12: IQDANRI2G5D2 · pith_short_16: IQDANRI2G5D2S7MH · pith_short_8: IQDANRI2

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/IQDANRI2G5D2S7MHFO672D66LS \
  | 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: 440606c51a3747a97d872bbdfd0fde5cbda99e62648e4c3d72f9e0518efbdc89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02a7af4cdd98a6de3d3091d9ab50f8aaaae1d436ec2b13a9ddd9a31625f72a69",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2019-06-28T00:32:54Z",
    "title_canon_sha256": "482e2ec4dc237a1ac06b5f92044cd62e9bab2b5650ad7dd37f16271daf05d1d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.12003",
    "kind": "arxiv",
    "version": 2
  }
}