Pith Number

pith:EZRP6KBF

pith:2019:EZRP6KBF5JMCDTL72A6LOGCDBJ

not attested not anchored not stored refs pending

On Computing the Number of Short Cycles in Bipartite Graphs Using the Spectrum of the Directed Edge Matrix

Ali Dehghan, Amir H. Banihashemi

arxiv:1903.08332 v1 · 2019-03-20 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EZRP6KBF5JMCDTL72A6LOGCDBJ}

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	2026-05-17T23:50:48.385607Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2662ff2825ea5821cd7fd03cb718430a5a22517eb8594fabc5c9b6c94e13e3fc

Aliases

arxiv: 1903.08332 · arxiv_version: 1903.08332v1 · doi: 10.48550/arxiv.1903.08332 · pith_short_12: EZRP6KBF5JMC · pith_short_16: EZRP6KBF5JMCDTL7 · pith_short_8: EZRP6KBF

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/EZRP6KBF5JMCDTL72A6LOGCDBJ \
  | 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: 2662ff2825ea5821cd7fd03cb718430a5a22517eb8594fabc5c9b6c94e13e3fc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "527c3577ea9e27a3d8d54997ee2df5e7335ce8a14c3f87f2563e5f697c8673bf",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-03-20T03:49:46Z",
    "title_canon_sha256": "857f708d76ea432cc09bc1151139727ec523c7df63cd4c9ecdaf9a814c2fd170"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.08332",
    "kind": "arxiv",
    "version": 1
  }
}