Pith Number

pith:CFI4SK4K

pith:2015:CFI4SK4K5AI3QHHSLVV6MQCQL4

not attested not anchored not stored refs pending

On circular-arc graphs with association schemes

Amir Rahnamai Barghi, Fatemeh Raei Barandagh

arxiv:1501.06315 v1 · 2015-01-26 · 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{CFI4SK4K5AI3QHHSLVV6MQCQL4}

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	2026-05-18T02:28:41.767640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1151c92b8ae811b81cf25d6be640505f146ed40ea10874e586a4a0cba072317a

Aliases

arxiv: 1501.06315 · arxiv_version: 1501.06315v1 · doi: 10.48550/arxiv.1501.06315 · pith_short_12: CFI4SK4K5AI3 · pith_short_16: CFI4SK4K5AI3QHHS · pith_short_8: CFI4SK4K

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/CFI4SK4K5AI3QHHSLVV6MQCQL4 \
  | 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: 1151c92b8ae811b81cf25d6be640505f146ed40ea10874e586a4a0cba072317a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f76fd5f2e1b89d4ed1881b13ce42c96af8879888be9ec78edf2a681ce74c7209",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2015-01-26T10:29:55Z",
    "title_canon_sha256": "bd204f14ab8afd3c7a92cf33fa36f5d1811628c28c6547b385d5c06baa8d6f1e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.06315",
    "kind": "arxiv",
    "version": 1
  }
}