Pith Number

pith:DDFQNKRT

pith:2013:DDFQNKRTT2MXWKMR6XPBPBJ2ZZ

not attested not anchored not stored refs pending

Construction of PMDS and SD Codes extending RAID 5

Mario Blaum

arxiv:1305.0032 v1 · 2013-04-30 · 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{DDFQNKRTT2MXWKMR6XPBPBJ2ZZ}

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	2026-05-18T03:26:42.216598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18cb06aa339e997b2991f5de17853ace74861656fd10ea474315a9f450e43fa8

Aliases

arxiv: 1305.0032 · arxiv_version: 1305.0032v1 · doi: 10.48550/arxiv.1305.0032 · pith_short_12: DDFQNKRTT2MX · pith_short_16: DDFQNKRTT2MXWKMR · pith_short_8: DDFQNKRT

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/DDFQNKRTT2MXWKMR6XPBPBJ2ZZ \
  | 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: 18cb06aa339e997b2991f5de17853ace74861656fd10ea474315a9f450e43fa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d90d906233c1d53bad32480ef3a0309f475ffd0f24910f081590e9f693e21b3",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-04-30T21:45:17Z",
    "title_canon_sha256": "87d50adf9cfdc0c03310bf23fe97ebc9d4a84ab7a38d8d01648bceebcc604af6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.0032",
    "kind": "arxiv",
    "version": 1
  }
}