Pith Number

pith:CE4VP2BM

pith:2015:CE4VP2BMRFIVW7IPX5LIVXNPRA

not attested not anchored not stored refs pending

On Pairwise Compatibility of Some Graph (Super)Classes

Blerina Sinaimeri, Mattia Gastaldello, Tiziana Calamoneri

arxiv:1504.06454 v1 · 2015-04-24 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CE4VP2BMRFIVW7IPX5LIVXNPRA}

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	2026-05-18T02:17:53.561232Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

113957e82c89515b7d0fbf568addaf882b8014c9900f1f05d70220111c4e7af3

Aliases

arxiv: 1504.06454 · arxiv_version: 1504.06454v1 · doi: 10.48550/arxiv.1504.06454 · pith_short_12: CE4VP2BMRFIV · pith_short_16: CE4VP2BMRFIVW7IP · pith_short_8: CE4VP2BM

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/CE4VP2BMRFIVW7IPX5LIVXNPRA \
  | 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: 113957e82c89515b7d0fbf568addaf882b8014c9900f1f05d70220111c4e7af3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4cb368747402db1dcb8085cb6e5a310e5e2bfebfd5e60609f031222a86d5127",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2015-04-24T10:04:02Z",
    "title_canon_sha256": "f84f9d1ed487fde1d91e1ae672752580946f9be94793d1e0a7650e2e7d776dc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06454",
    "kind": "arxiv",
    "version": 1
  }
}