Pith Number

pith:AH4UWSSD

pith:2019:AH4UWSSDV7NJD2T7WQNGXGHDNK

not attested not anchored not stored refs pending

Super-pancyclic hypergraphs and bipartite graphs

Alexandr Kostochka, Dara Zirlin, Ruth Luo

arxiv:1905.03758 v1 · 2019-05-09 · math.CO

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

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	2026-05-17T23:46:36.760944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01f94b4a43afda91ea7fb41a6b98e36a979ccb0d8e7cd6f31d8ef907b86e54a8

Aliases

arxiv: 1905.03758 · arxiv_version: 1905.03758v1 · doi: 10.48550/arxiv.1905.03758 · pith_short_12: AH4UWSSDV7NJ · pith_short_16: AH4UWSSDV7NJD2T7 · pith_short_8: AH4UWSSD

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/AH4UWSSDV7NJD2T7WQNGXGHDNK \
  | 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: 01f94b4a43afda91ea7fb41a6b98e36a979ccb0d8e7cd6f31d8ef907b86e54a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c957cedb817c8b193d097a2abad36250a1aab9233aeca26cb09f6a9334251690",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-05-09T17:15:18Z",
    "title_canon_sha256": "c309b2669a6aaae025e0fb334e9c254fc02074a6e7db19930142d3f1767419c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.03758",
    "kind": "arxiv",
    "version": 1
  }
}