Pith Number

pith:ZN3MHB7A

pith:2013:ZN3MHB7AQVZ3JCUEU2FV5YUMH3

not attested not anchored not stored refs pending

An Improved Outer Bound on the Storage-Repair-Bandwidth Tradeoff of Exact-Repair Regenerating Codes

Birenjith Sasidharan, Kaushik Senthoor, P. Vijay Kumar

arxiv:1312.6079 v1 · 2013-12-20 · 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{ZN3MHB7AQVZ3JCUEU2FV5YUMH3}

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	2026-05-18T03:04:07.204772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cb76c387e08573b48a84a68b5ee28c3ecc2d7ff463c06dc7733777660ef4f964

Aliases

arxiv: 1312.6079 · arxiv_version: 1312.6079v1 · doi: 10.48550/arxiv.1312.6079 · pith_short_12: ZN3MHB7AQVZ3 · pith_short_16: ZN3MHB7AQVZ3JCUE · pith_short_8: ZN3MHB7A

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/ZN3MHB7AQVZ3JCUEU2FV5YUMH3 \
  | 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: cb76c387e08573b48a84a68b5ee28c3ecc2d7ff463c06dc7733777660ef4f964

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc068cf47cad9d2decd4ef6ac26866e50f840dd98a7b3510a212f13e878b6866",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-12-20T19:18:25Z",
    "title_canon_sha256": "f2f2131957de0140dedc71aa09853c54c9692bcf3afacc9460f4a5ea42a449d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.6079",
    "kind": "arxiv",
    "version": 1
  }
}