Pith Number

pith:Q3BXCII5

pith:2009:Q3BXCII5ABQ5G4BMD3NPFVDNFY

not attested not anchored not stored refs pending

A bound on the size of linear codes

Eleonora Guerrini, Massimiliano Sala

arxiv:0902.1634 v2 · 2009-02-10 · 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{Q3BXCII5ABQ5G4BMD3NPFVDNFY}

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	2026-05-18T03:52:28.693102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86c371211d0061d3702c1edaf2d46d2e12448c07cdcd0ff46a5d5857545719f6

Aliases

arxiv: 0902.1634 · arxiv_version: 0902.1634v2 · doi: 10.48550/arxiv.0902.1634 · pith_short_12: Q3BXCII5ABQ5 · pith_short_16: Q3BXCII5ABQ5G4BM · pith_short_8: Q3BXCII5

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/Q3BXCII5ABQ5G4BMD3NPFVDNFY \
  | 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: 86c371211d0061d3702c1edaf2d46d2e12448c07cdcd0ff46a5d5857545719f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb5574e10fca65784003b03650a86dd7b775d6831b3db5a0f3bd1d91b42fa098",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2009-02-10T11:50:48Z",
    "title_canon_sha256": "2a912faece127fbca71a3aa1cea3534f3899a679bf642104f8440f3126f56e01"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1634",
    "kind": "arxiv",
    "version": 2
  }
}