Pith Number

pith:HRL2SWRB

pith:2015:HRL2SWRBLVGRUYZ5GWL6EFRAR4

not attested not anchored not stored refs pending

S-positivity of interval hypergraphs

Alexander Paunov

arxiv:1508.01094 v2 · 2015-08-05 · 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{HRL2SWRBLVGRUYZ5GWL6EFRAR4}

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	2026-05-18T01:35:26.417295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c57a95a215d4d1a633d3597e216208f2c765dc932f047ce7e0f3eb9668195ef

Aliases

arxiv: 1508.01094 · arxiv_version: 1508.01094v2 · doi: 10.48550/arxiv.1508.01094 · pith_short_12: HRL2SWRBLVGR · pith_short_16: HRL2SWRBLVGRUYZ5 · pith_short_8: HRL2SWRB

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/HRL2SWRBLVGRUYZ5GWL6EFRAR4 \
  | 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: 3c57a95a215d4d1a633d3597e216208f2c765dc932f047ce7e0f3eb9668195ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "462c44cd5ff993e1823fb3671620fe98d351a90dbb13b67e6e3a6889bfadc9e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-08-05T14:54:40Z",
    "title_canon_sha256": "19b369b972c44ada3cb577b7171e988fcd9d729106f6a719419e1e181d221d0a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.01094",
    "kind": "arxiv",
    "version": 2
  }
}