Pith Number

pith:BXYWB4X5

pith:2002:BXYWB4X53ZQNBM37XEBWDWNPQ7

not attested not anchored not stored refs pending

On Single-Deletion-Correcting Codes

N.J.A. Sloane

arxiv:math/0207197 v1 · 2002-07-22 · math.CO · cs.IT · 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{BXYWB4X53ZQNBM37XEBWDWNPQ7}

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	2026-05-18T02:42:37.762182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0df160f2fdde60d0b37fb90361d9af87ee6b2cb189f7f804d8c3c3b09b1124d2

Aliases

arxiv: math/0207197 · arxiv_version: math/0207197v1 · doi: 10.48550/arxiv.math/0207197 · pith_short_12: BXYWB4X53ZQN · pith_short_16: BXYWB4X53ZQNBM37 · pith_short_8: BXYWB4X5

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/BXYWB4X53ZQNBM37XEBWDWNPQ7 \
  | 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: 0df160f2fdde60d0b37fb90361d9af87ee6b2cb189f7f804d8c3c3b09b1124d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fdf000186b06038cd53385d3a0ce8e72fd3e88e2a01fd3bdda8cfcf8bd367680",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "2002-07-22T20:30:20Z",
    "title_canon_sha256": "727a09b1f95f7ef0e74b44fef17178d30740c758c74d7722a51501713c545155"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0207197",
    "kind": "arxiv",
    "version": 1
  }
}