Pith Number

pith:JQSJ6XMC

pith:2009:JQSJ6XMCXQ4YQNUSYIRB4JB46H

not attested not anchored not stored refs pending

On the Classification of Type II Codes of Length 24

Noam D. Elkies, Scott D. Kominers

arxiv:0902.1942 v2 · 2009-02-11 · math.NT · cs.DM · cs.IT · math.CO · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQSJ6XMCXQ4YQNUSYIRB4JB46H}

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	2026-05-18T04:32:19.997733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c249f5d82bc39883692c2221e243cf1c5b97b91d895400352b85469db431731

Aliases

arxiv: 0902.1942 · arxiv_version: 0902.1942v2 · doi: 10.48550/arxiv.0902.1942 · pith_short_12: JQSJ6XMCXQ4Y · pith_short_16: JQSJ6XMCXQ4YQNUS · pith_short_8: JQSJ6XMC

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/JQSJ6XMCXQ4YQNUSYIRB4JB46H \
  | 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: 4c249f5d82bc39883692c2221e243cf1c5b97b91d895400352b85469db431731

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9360cda038d428a7efebfcb63a99a1dcd9144be62f5cbcb2aa9485c7992557f5",
    "cross_cats_sorted": [
      "cs.DM",
      "cs.IT",
      "math.CO",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2009-02-11T17:09:18Z",
    "title_canon_sha256": "a287b36ecc5d94d4a824d692d6240789cf3d035744bb01ef113d9c2db1ea903e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1942",
    "kind": "arxiv",
    "version": 2
  }
}