Pith Number

pith:CJQLF6ZI

pith:2019:CJQLF6ZIV7GVSNSE6ORU27YCTR

not attested not anchored not stored refs pending

On the Hilton-Spencer intersection theorems for unions of cycles

Carl Feghali, Peter Borg

arxiv:1908.08825 v1 · 2019-08-23 · 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{CJQLF6ZIV7GVSNSE6ORU27YCTR}

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	2026-07-04T23:59:24.344322Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1260b2fb28afcd593644f3a34d7f029c426063cbbbff5883a4acd7a251d83925

Aliases

arxiv: 1908.08825 · arxiv_version: 1908.08825v1 · doi: 10.48550/arxiv.1908.08825 · pith_short_12: CJQLF6ZIV7GV · pith_short_16: CJQLF6ZIV7GVSNSE · pith_short_8: CJQLF6ZI

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/CJQLF6ZIV7GVSNSE6ORU27YCTR \
  | 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: 1260b2fb28afcd593644f3a34d7f029c426063cbbbff5883a4acd7a251d83925

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "db9ed2d874e71d18850c4c6f46335e6d1386cbfc400e556559bb9b7b2d24a7ba",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-08-23T13:49:51Z",
    "title_canon_sha256": "06742c9f6f8ca115648b5834e9c39359d6b2d5193a1b6863699d197cf4a3b365"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08825",
    "kind": "arxiv",
    "version": 1
  }
}