Pith Number

pith:IPHZZ5YZ

pith:2011:IPHZZ5YZWR55PIKF56NPRQLGS7

not attested not anchored not stored refs pending

Decoding of Matrix-Product Codes

Diego Ruano, Fernando Hernando

arxiv:1107.1529 v2 · 2011-07-07 · 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{IPHZZ5YZWR55PIKF56NPRQLGS7}

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	2026-05-18T03:28:17.723281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43cf9cf719b47bd7a145ef9af8c16697ddbc6d0110b9c20a182494762b6f396f

Aliases

arxiv: 1107.1529 · arxiv_version: 1107.1529v2 · doi: 10.48550/arxiv.1107.1529 · pith_short_12: IPHZZ5YZWR55 · pith_short_16: IPHZZ5YZWR55PIKF · pith_short_8: IPHZZ5YZ

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/IPHZZ5YZWR55PIKF56NPRQLGS7 \
  | 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: 43cf9cf719b47bd7a145ef9af8c16697ddbc6d0110b9c20a182494762b6f396f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "693291c346bea7e08086f29f576bc7335532156fbe72a04c7814fd98f5e097dc",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-07-07T21:49:55Z",
    "title_canon_sha256": "121cb2243cb05ed4dc6fc8bc30648748a99ace2185fcc977fdb710eb7d1245ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.1529",
    "kind": "arxiv",
    "version": 2
  }
}