Pith Number

pith:7MUSZ65W

pith:2015:7MUSZ65WCUTN77PL3BZRLQ2G5V

not attested not anchored not stored refs pending

A Family of Erasure Correcting Codes with Low Repair Bandwidth and Low Repair Complexity

Alexandre Graell i Amat, Fredrik Br\"annstr\"om, Iryna Andriyanova, Siddhartha Kumar

arxiv:1505.03491 v2 · 2015-05-13 · 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{7MUSZ65WCUTN77PL3BZRLQ2G5V}

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	2026-05-18T01:34:41.781760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb292cfbb61526dffdebd87315c346ed6251317cd6c1820f22fda9cd4083c9ca

Aliases

arxiv: 1505.03491 · arxiv_version: 1505.03491v2 · doi: 10.48550/arxiv.1505.03491 · pith_short_12: 7MUSZ65WCUTN · pith_short_16: 7MUSZ65WCUTN77PL · pith_short_8: 7MUSZ65W

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/7MUSZ65WCUTN77PL3BZRLQ2G5V \
  | 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: fb292cfbb61526dffdebd87315c346ed6251317cd6c1820f22fda9cd4083c9ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1ed52233295e02bb16bb5f4eb368609426ae1ead88efbaf793bbcdd4977379b6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-05-13T18:39:42Z",
    "title_canon_sha256": "c45e179ce80369e6f31089a053c645a4f41592bd8b711b476097e2224746f0c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03491",
    "kind": "arxiv",
    "version": 2
  }
}