Pith Number

pith:EKPFPECC

pith:2010:EKPFPECC2J6LQAKJ4LU7JYGGPH

not attested not anchored not stored refs pending

Distributed Storage Codes with Repair-by-Transfer and Non-achievability of Interior Points on the Storage-Bandwidth Tradeoff

Kannan Ramchandran, K. V. Rashmi, Nihar B. Shah, P. Vijay Kumar

arxiv:1011.2361 v2 · 2010-11-10 · cs.IT · cs.DC · cs.NI · 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{EKPFPECC2J6LQAKJ4LU7JYGGPH}

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	2026-05-18T02:23:37.109843Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

229e579042d27cb80149e2e9f4e0c679e7852688f65659140d5daddbc8d559ea

Aliases

arxiv: 1011.2361 · arxiv_version: 1011.2361v2 · doi: 10.48550/arxiv.1011.2361 · pith_short_12: EKPFPECC2J6L · pith_short_16: EKPFPECC2J6LQAKJ · pith_short_8: EKPFPECC

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/EKPFPECC2J6LQAKJ4LU7JYGGPH \
  | 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: 229e579042d27cb80149e2e9f4e0c679e7852688f65659140d5daddbc8d559ea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9965d33fbe85adc85d484c998a894ac010c89904d2a079996d066fbdf4933af",
    "cross_cats_sorted": [
      "cs.DC",
      "cs.NI",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2010-11-10T12:34:46Z",
    "title_canon_sha256": "cb8c5f89a7dc6c1f858e5a777e312e89563799c30f028adc0831711497286ddd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.2361",
    "kind": "arxiv",
    "version": 2
  }
}