Pith Number

pith:WLBV33J7

pith:2012:WLBV33J7VRSMVDIN6VCXURHBQW

not attested not anchored not stored refs pending

Exact Cooperative Regenerating Codes with Minimum-Repair-Bandwidth for Distributed Storage

Anyu Wang, Zhifang Zhang

arxiv:1207.0879 v1 · 2012-07-04 · 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{WLBV33J7VRSMVDIN6VCXURHBQW}

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	2026-05-18T03:51:48.123107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2c35ded3fac64ca8d0df5457a44e185b4a45b54c949793b6e9a1004dd147c1a

Aliases

arxiv: 1207.0879 · arxiv_version: 1207.0879v1 · doi: 10.48550/arxiv.1207.0879 · pith_short_12: WLBV33J7VRSM · pith_short_16: WLBV33J7VRSMVDIN · pith_short_8: WLBV33J7

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/WLBV33J7VRSMVDIN6VCXURHBQW \
  | 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: b2c35ded3fac64ca8d0df5457a44e185b4a45b54c949793b6e9a1004dd147c1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d3f21f5dba776962ad6a1e38ad5842c1464021e50e58c2336e3051f7f3510be",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-07-04T02:26:05Z",
    "title_canon_sha256": "a0c7390cfbe50dd7423caefee1c377c8e897839a91306be7bbde225975339e88"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.0879",
    "kind": "arxiv",
    "version": 1
  }
}