Pith Number

pith:TFJU3NCV

pith:2016:TFJU3NCVPRXS2Z4V3MBESE5U72

not attested not anchored not stored refs pending

Deciding whether there are infinitely many prime graphs with forbidden induced subgraphs

Hojin Choi, Jisu Jeong, Robert Brignall, Sang-il Oum

arxiv:1607.06864 v2 · 2016-07-23 · cs.DM · 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{TFJU3NCVPRXS2Z4V3MBESE5U72}

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	2026-05-17T23:56:25.364417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99534db4557c6f2d6795db024913b4fe8305bf5f9dc8e868b88b84eb63aea0b6

Aliases

arxiv: 1607.06864 · arxiv_version: 1607.06864v2 · doi: 10.48550/arxiv.1607.06864 · pith_short_12: TFJU3NCVPRXS · pith_short_16: TFJU3NCVPRXS2Z4V · pith_short_8: TFJU3NCV

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/TFJU3NCVPRXS2Z4V3MBESE5U72 \
  | 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: 99534db4557c6f2d6795db024913b4fe8305bf5f9dc8e868b88b84eb63aea0b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43c37b30f64327776b4afdc680ae308a5de9b3beabcfea196031d61804dcddd5",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2016-07-23T00:08:22Z",
    "title_canon_sha256": "dbf3eb24eca8db627e28dd238e07ec810e59fc5b9dc9a5165ab2980ec3f7da38"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.06864",
    "kind": "arxiv",
    "version": 2
  }
}