Pith Number

pith:23YR47R3

pith:2019:23YR47R34IR3KEQOU7JNFJLLII

not attested not anchored not stored refs pending

On Self-Descriptive Squares

Dmitry Kamenetsky, Lee Sallows

arxiv:1905.10191 v1 · 2019-05-22 · math.GM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{23YR47R34IR3KEQOU7JNFJLLII}

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	2026-05-17T23:45:11.009915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6f11e7e3be223b5120ea7d2d2a56b42148a82dc5cb80f3a1e39e22d440d0221

Aliases

arxiv: 1905.10191 · arxiv_version: 1905.10191v1 · doi: 10.48550/arxiv.1905.10191 · pith_short_12: 23YR47R34IR3 · pith_short_16: 23YR47R34IR3KEQO · pith_short_8: 23YR47R3

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/23YR47R34IR3KEQOU7JNFJLLII \
  | 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: d6f11e7e3be223b5120ea7d2d2a56b42148a82dc5cb80f3a1e39e22d440d0221

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "141b8a4c34d0ad96c85dd3a41392e7c10a9c876b554e142872a2badabd729baa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GM",
    "submitted_at": "2019-05-22T02:29:56Z",
    "title_canon_sha256": "d3dc4a1a06285b96fd815837bdece1ebc091efdba93b1f2110e0193d4d6ead4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.10191",
    "kind": "arxiv",
    "version": 1
  }
}