Pith Number

pith:UI2AD5G7

pith:2016:UI2AD5G72QXDYCGTUVPP62AP7E

not attested not anchored not stored refs pending

When Can Helper Node Selection Improve Regenerating Codes? Part I: Graph-Based Analysis

Chih-Chun Wang, Imad Ahmad

arxiv:1604.08231 v1 · 2016-04-27 · 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{UI2AD5G72QXDYCGTUVPP62AP7E}

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	2026-05-18T01:16:04.528453Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a23401f4dfd42e3c08d3a55eff680ff921365e49939e2f3bcf5d4ca211cc1224

Aliases

arxiv: 1604.08231 · arxiv_version: 1604.08231v1 · doi: 10.48550/arxiv.1604.08231 · pith_short_12: UI2AD5G72QXD · pith_short_16: UI2AD5G72QXDYCGT · pith_short_8: UI2AD5G7

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/UI2AD5G72QXDYCGTUVPP62AP7E \
  | 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: a23401f4dfd42e3c08d3a55eff680ff921365e49939e2f3bcf5d4ca211cc1224

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "555f5345f0873336529d4bc63367daf9f7cd616d6f59d4b67fe6182ab2b00f59",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-04-27T20:34:06Z",
    "title_canon_sha256": "38b311da6b61a3abc3419cb4699b6c53b1236e55b649a4f5ea0c790999e6c1f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.08231",
    "kind": "arxiv",
    "version": 1
  }
}