Pith Number

pith:B4R4CRB6

pith:2019:B4R4CRB6WI23E34OOIOUWZ5C7Y

not attested not anchored not stored refs pending

Spectra and eigenspaces from regular partitions of Cayley (di)graphs of permutation groups

C. Dalf\'o, M. A. Fiol

arxiv:1906.05851 v1 · 2019-06-13 · 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{B4R4CRB6WI23E34OOIOUWZ5C7Y}

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	2026-05-17T23:43:24.262661Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f23c1443eb235b26f8e721d4b67a2fe039b556d480aab9e4b03f475e0a25332

Aliases

arxiv: 1906.05851 · arxiv_version: 1906.05851v1 · doi: 10.48550/arxiv.1906.05851 · pith_short_12: B4R4CRB6WI23 · pith_short_16: B4R4CRB6WI23E34O · pith_short_8: B4R4CRB6

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/B4R4CRB6WI23E34OOIOUWZ5C7Y \
  | 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: 0f23c1443eb235b26f8e721d4b67a2fe039b556d480aab9e4b03f475e0a25332

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "077b51fc32b15b7d2c4303c26098d5c1127b6a2d7c3b628a8ad94647570a36f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2019-06-13T17:50:29Z",
    "title_canon_sha256": "928eca23c54ffbb6232547327ec891f212f2d4531f634a1d47c0fee7dccf2e7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.05851",
    "kind": "arxiv",
    "version": 1
  }
}