Pith Number

pith:SL5SPXS5

pith:2017:SL5SPXS5A3WBXSWQ3VOULFOPHI

not attested not anchored not stored refs pending

Generalized forbidden subposet problems

Balazs Keszegh, Balazs Patkos, Daniel Gerbner

arxiv:1701.05030 v2 · 2017-01-18 · 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{SL5SPXS5A3WBXSWQ3VOULFOPHI}

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	2026-05-18T00:38:30.501593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

92fb27de5d06ec1bcad0dd5d4595cf3a0ee9f12d2cdee29ce28af596eea1c081

Aliases

arxiv: 1701.05030 · arxiv_version: 1701.05030v2 · doi: 10.48550/arxiv.1701.05030 · pith_short_12: SL5SPXS5A3WB · pith_short_16: SL5SPXS5A3WBXSWQ · pith_short_8: SL5SPXS5

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/SL5SPXS5A3WBXSWQ3VOULFOPHI \
  | 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: 92fb27de5d06ec1bcad0dd5d4595cf3a0ee9f12d2cdee29ce28af596eea1c081

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0244e4dff657ef966475619bf914d9d2cd8dd9126ccf9f142fc627490befd31",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-18T12:21:07Z",
    "title_canon_sha256": "e846d3054c428c3af749a4f5a8faa1bbf916f9e2c9732176c9fe87512dc2f986"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05030",
    "kind": "arxiv",
    "version": 2
  }
}