Pith Number

pith:MY7N7MV3

pith:2015:MY7N7MV3KRVIV75SUNAENRWMWT

not attested not anchored not stored refs pending

Distance-regular Cayley graphs with least eigenvalue $-2$

Alireza Abdollahi, Edwin van Dam, Mojtaba Jazaeri

arxiv:1512.06019 v2 · 2015-12-18 · 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{MY7N7MV3KRVIV75SUNAENRWMWT}

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	2026-05-18T01:16:09.383672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

663edfb2bb546a8affb2a34046c6ccb4e38a05aecfef1aadfc61448860adf789

Aliases

arxiv: 1512.06019 · arxiv_version: 1512.06019v2 · doi: 10.48550/arxiv.1512.06019 · pith_short_12: MY7N7MV3KRVI · pith_short_16: MY7N7MV3KRVIV75S · pith_short_8: MY7N7MV3

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/MY7N7MV3KRVIV75SUNAENRWMWT \
  | 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: 663edfb2bb546a8affb2a34046c6ccb4e38a05aecfef1aadfc61448860adf789

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "511f72ae783b323044ea0a9f7f26a9e42c4d830c2a492f9799089957d1e20c14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-12-18T16:33:23Z",
    "title_canon_sha256": "c97877fa58c41eee3d3f6f4bc07b61239c04ab50eac1692e56ca53aa420bc376"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.06019",
    "kind": "arxiv",
    "version": 2
  }
}