Pith Number

pith:R5DA2KVS

pith:2013:R5DA2KVSMXPY6GWXDXWPVTU3YY

not attested not anchored not stored refs pending

The pasch configuration and Steiner triple systems

Masood Aryapoor

arxiv:1306.1257 v1 · 2013-06-05 · 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{R5DA2KVSMXPY6GWXDXWPVTU3YY}

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	2026-05-18T03:21:42.877606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f460d2ab265df8f1ad71decface9bc610c680724b39f9cfc7b8235eb6eff2ec

Aliases

arxiv: 1306.1257 · arxiv_version: 1306.1257v1 · doi: 10.48550/arxiv.1306.1257 · pith_short_12: R5DA2KVSMXPY · pith_short_16: R5DA2KVSMXPY6GWX · pith_short_8: R5DA2KVS

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/R5DA2KVSMXPY6GWXDXWPVTU3YY \
  | 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: 8f460d2ab265df8f1ad71decface9bc610c680724b39f9cfc7b8235eb6eff2ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "843be0da9640d7c3b4ec67140d47527decff33997dfb7742adbaf8d31e84d6ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2013-06-05T22:01:29Z",
    "title_canon_sha256": "843be0da9640d7c3b4ec67140d47527decff33997dfb7742adbaf8d31e84d6ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1257",
    "kind": "arxiv",
    "version": 1
  }
}