Pith Number

pith:UELDQD7G

pith:2016:UELDQD7GBL7JJYT5Y4GRZKFXBN

not attested not anchored not stored refs pending

Forbidden subposet problems with size restrictions

D\'aniel T. Nagy

arxiv:1608.06646 v1 · 2016-08-23 · 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{UELDQD7GBL7JJYT5Y4GRZKFXBN}

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	2026-05-18T01:07:57.829033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a116380fe60afe94e27dc70d1ca8b70b6d4968b76edce65e83d81ba67701eecf

Aliases

arxiv: 1608.06646 · arxiv_version: 1608.06646v1 · doi: 10.48550/arxiv.1608.06646 · pith_short_12: UELDQD7GBL7J · pith_short_16: UELDQD7GBL7JJYT5 · pith_short_8: UELDQD7G

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/UELDQD7GBL7JJYT5Y4GRZKFXBN \
  | 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: a116380fe60afe94e27dc70d1ca8b70b6d4968b76edce65e83d81ba67701eecf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ce7a1da531bab8294a371eceea399d766a2c68c4af30d1b7f5704d9b143822e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-08-23T20:23:05Z",
    "title_canon_sha256": "dd39bd13381b097f2ebe64bff2eb7e5aa6760a1a76dbb07beaf070ad34538cba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.06646",
    "kind": "arxiv",
    "version": 1
  }
}