Pith Number

pith:EAJ273ZE

pith:2014:EAJ273ZEFN75WS4WQJ24KXLUZ5

not attested not anchored not stored refs pending

Switched symplectic graphs and their 2-ranks

Aida Abiad, Willem H. Haemers

arxiv:1412.2945 v2 · 2014-12-09 · 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{EAJ273ZEFN75WS4WQJ24KXLUZ5}

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	2026-05-18T01:36:13.767454Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2013afef242b7fdb4b968275c55d74cf7234312e146bd6d9b6ff5c7aba476fe9

Aliases

arxiv: 1412.2945 · arxiv_version: 1412.2945v2 · doi: 10.48550/arxiv.1412.2945 · pith_short_12: EAJ273ZEFN75 · pith_short_16: EAJ273ZEFN75WS4W · pith_short_8: EAJ273ZE

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/EAJ273ZEFN75WS4WQJ24KXLUZ5 \
  | 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: 2013afef242b7fdb4b968275c55d74cf7234312e146bd6d9b6ff5c7aba476fe9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbf1706c7b91a393209ed693430850fdc013f39c1b932044818a7cd621b68c7f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-12-09T12:55:15Z",
    "title_canon_sha256": "5601d7952ae523a956278f632c17e8f72256bc227134ca6ba334a3f8ec2299f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2945",
    "kind": "arxiv",
    "version": 2
  }
}