Pith Number

pith:B72AU6AA

pith:2013:B72AU6AA6ICKL2AOKDNIWX3FSG

not attested not anchored not stored refs pending

Update-Efficient Error-Correcting Product-Matrix Codes

Hung-Ta Pai, Pramod K. Varshney, Rong Zheng, Yunghsiang Han

arxiv:1301.4620 v2 · 2013-01-20 · 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{B72AU6AA6ICKL2AOKDNIWX3FSG}

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	2026-05-18T02:49:03.394168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ff40a7800f204a5e80e50da8b5f6591a49377a9012ae6d5884dc082a576c2ab

Aliases

arxiv: 1301.4620 · arxiv_version: 1301.4620v2 · doi: 10.48550/arxiv.1301.4620 · pith_short_12: B72AU6AA6ICK · pith_short_16: B72AU6AA6ICKL2AO · pith_short_8: B72AU6AA

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/B72AU6AA6ICKL2AOKDNIWX3FSG \
  | 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: 0ff40a7800f204a5e80e50da8b5f6591a49377a9012ae6d5884dc082a576c2ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7bc055a108e1b572c9ff46437ff32362b77fd3c4ab8f58b46b2bedf4c260ffc",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-01-20T02:03:41Z",
    "title_canon_sha256": "3b90e96be2a80d98a50ad4224bf1e26c5f3683de5e8e8d5714d783b60304926e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4620",
    "kind": "arxiv",
    "version": 2
  }
}