Pith Number

pith:JEDXAVLU

pith:2017:JEDXAVLUHRSHGNNJVLNFM4U7VF

not attested not anchored not stored refs pending

Strongly regular decompositions and symmetric association schemes of a power of two

Hadi Kharaghani, Sara Sasani, Sho Suda

arxiv:1701.05630 v1 · 2017-01-19 · 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{JEDXAVLUHRSHGNNJVLNFM4U7VF}

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	2026-05-18T00:52:28.965671Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49077055743c647335a9aada56729fa94277bc12c7e547a08b4eb8162468f04d

Aliases

arxiv: 1701.05630 · arxiv_version: 1701.05630v1 · doi: 10.48550/arxiv.1701.05630 · pith_short_12: JEDXAVLUHRSH · pith_short_16: JEDXAVLUHRSHGNNJ · pith_short_8: JEDXAVLU

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/JEDXAVLUHRSHGNNJVLNFM4U7VF \
  | 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: 49077055743c647335a9aada56729fa94277bc12c7e547a08b4eb8162468f04d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f874412f4767329b022941f8ddd518265f5a20b4d50ff297232efd3d218028e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-19T22:27:49Z",
    "title_canon_sha256": "8c8ea99aafb879e6e8e99fcf9c217b03ff3e578eda6f8b85ace60657c119d121"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.05630",
    "kind": "arxiv",
    "version": 1
  }
}