Pith Number

pith:4FEGLFGQ

pith:2018:4FEGLFGQBFFXZSOFITBXMCSUPF

not attested not anchored not stored refs pending

The poset of graphs ordered by induced containment

Jason P. Smith

arxiv:1806.01821 v2 · 2018-06-05 · 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{4FEGLFGQBFFXZSOFITBXMCSUPF}

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	2026-05-18T00:13:09.925137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1486594d0094b7cc9c544c3760a547956d9505cadb94314569fe0cb05ca724e

Aliases

arxiv: 1806.01821 · arxiv_version: 1806.01821v2 · doi: 10.48550/arxiv.1806.01821 · pith_short_12: 4FEGLFGQBFFX · pith_short_16: 4FEGLFGQBFFXZSOF · pith_short_8: 4FEGLFGQ

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/4FEGLFGQBFFXZSOFITBXMCSUPF \
  | 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: e1486594d0094b7cc9c544c3760a547956d9505cadb94314569fe0cb05ca724e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5a95174c90dfde58d971386350bc000c6563dc71499a7cadce2344805495670",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2018-06-05T17:18:50Z",
    "title_canon_sha256": "0bae4f5fb7229e8a7890268b556cda6f18881239f4adaa2c85014cf91bcc37ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.01821",
    "kind": "arxiv",
    "version": 2
  }
}