Pith Number

pith:SR4EKKHU

pith:2015:SR4EKKHUF3FBMHAYF4XXPU6PCG

not attested not anchored not stored refs pending

On powers of interval graphs and their orders

Aline Parreau, Florent Foucaud, Petru Valicov, Reza Naserasr

arxiv:1505.03459 v2 · 2015-05-13 · 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{SR4EKKHUF3FBMHAYF4XXPU6PCG}

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	2026-05-18T01:27:31.683341Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94784528f42eca161c182f2f77d3cf11833861b391ab55a126d3b6f951014838

Aliases

arxiv: 1505.03459 · arxiv_version: 1505.03459v2 · doi: 10.48550/arxiv.1505.03459 · pith_short_12: SR4EKKHUF3FB · pith_short_16: SR4EKKHUF3FBMHAY · pith_short_8: SR4EKKHU

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/SR4EKKHUF3FBMHAYF4XXPU6PCG \
  | 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: 94784528f42eca161c182f2f77d3cf11833861b391ab55a126d3b6f951014838

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "344b458c32da64bd8e1afc0fb3894bb19e206c43311a891bd72f4bfce31bc09f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-05-13T17:08:55Z",
    "title_canon_sha256": "a667d26532f7413eea18aa4eb0b688e0f0608f712f1cd249a45b2532342b5f3d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03459",
    "kind": "arxiv",
    "version": 2
  }
}