Pith Number

pith:BDSR7GOO

pith:2013:BDSR7GOO5RBMDA6ZBBRDLNX67F

not attested not anchored not stored refs pending

Numbers with three close factorizations

Tsz Ho Chan

arxiv:1303.2249 v2 · 2013-03-09 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BDSR7GOO5RBMDA6ZBBRDLNX67F}

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	2026-05-18T03:30:54.878617Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08e51f99ceec42c183d9086235b6fef94f992ef874b9b373350570b1b28b6889

Aliases

arxiv: 1303.2249 · arxiv_version: 1303.2249v2 · doi: 10.48550/arxiv.1303.2249 · pith_short_12: BDSR7GOO5RBM · pith_short_16: BDSR7GOO5RBMDA6Z · pith_short_8: BDSR7GOO

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/BDSR7GOO5RBMDA6ZBBRDLNX67F \
  | 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: 08e51f99ceec42c183d9086235b6fef94f992ef874b9b373350570b1b28b6889

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9b4f9604a1ea6c473755b066dc395cfc3b588a6378a8974bd1a43b213d64f82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2013-03-09T18:28:23Z",
    "title_canon_sha256": "5f99661ba01802986868de52563d799cf24a43757e4693febe2b0f29b059678b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2249",
    "kind": "arxiv",
    "version": 2
  }
}