Pith Number

pith:GU7WD7U7

pith:2011:GU7WD7U7ZAORR7GXUX2RRIM23M

not attested not anchored not stored refs pending

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

Kenneth W. Shum, Yuchong Hu

arxiv:1102.1609 v3 · 2011-02-08 · cs.IT · cs.DC · 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{GU7WD7U7ZAORR7GXUX2RRIM23M}

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	2026-05-18T02:22:39.707736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

353f61fe9fc81d18fcd7a5f518a19adb0572b3dd7b8ef4942ed4983c7fe7d8dc

Aliases

arxiv: 1102.1609 · arxiv_version: 1102.1609v3 · doi: 10.48550/arxiv.1102.1609 · pith_short_12: GU7WD7U7ZAOR · pith_short_16: GU7WD7U7ZAORR7GX · pith_short_8: GU7WD7U7

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/GU7WD7U7ZAORR7GXUX2RRIM23M \
  | 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: 353f61fe9fc81d18fcd7a5f518a19adb0572b3dd7b8ef4942ed4983c7fe7d8dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15468be4c2e818c5704c20f8c0f8931a2f9b9aa54334d60fd81f1abf394fbd5c",
    "cross_cats_sorted": [
      "cs.DC",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-02-08T14:11:58Z",
    "title_canon_sha256": "ae6f20d5c8ffc401f5cc86c821d3dc9af78916cd0c943914ad86a50bc9bc712f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1609",
    "kind": "arxiv",
    "version": 3
  }
}