Pith Number

pith:JT2MPJM5

pith:2014:JT2MPJM5XIBIY3YA3QEYYIBDY7

not attested not anchored not stored refs pending

New Codes and Inner Bounds for Exact Repair in Distributed Storage Systems

Robert Calderbank, Salim El Rouayheb, Sreechakra Goparaju

arxiv:1402.2343 v1 · 2014-02-11 · 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{JT2MPJM5XIBIY3YA3QEYYIBDY7}

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	2026-05-18T02:59:31.062366Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cf4c7a59dba028c6f00dc098c2023c7c4b53b65ec46f74e7b7477c3d5f3a8f5

Aliases

arxiv: 1402.2343 · arxiv_version: 1402.2343v1 · doi: 10.48550/arxiv.1402.2343 · pith_short_12: JT2MPJM5XIBI · pith_short_16: JT2MPJM5XIBIY3YA · pith_short_8: JT2MPJM5

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/JT2MPJM5XIBIY3YA3QEYYIBDY7 \
  | 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: 4cf4c7a59dba028c6f00dc098c2023c7c4b53b65ec46f74e7b7477c3d5f3a8f5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1022681d13497eb8507802321b89fa7a2f8e9900e72efb8fad155a02a42c94a1",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2014-02-11T01:08:03Z",
    "title_canon_sha256": "10a7304dadcc9b343d29941af38514bd3d3a68845d7ee8309018f9a34fda84f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2343",
    "kind": "arxiv",
    "version": 1
  }
}