Pith Number

pith:KWJFFGA6

pith:2012:KWJFFGA6JI3EFRVK7Y55PCFALG

not attested not anchored not stored refs pending

Analysis and Construction of Functional Regenerating Codes with Uncoded Repair for Distributed Storage Systems

Kenneth W. Shum, Patrick P. C. Lee, Yuchong Hu

arxiv:1208.2787 v2 · 2012-08-14 · 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{KWJFFGA6JI3EFRVK7Y55PCFALG}

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	2026-05-18T03:35:53.950558Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

559252981e4a3642c6aafe3bd788a059a1e7fd40d559325dd823c9b12c83906d

Aliases

arxiv: 1208.2787 · arxiv_version: 1208.2787v2 · doi: 10.48550/arxiv.1208.2787 · pith_short_12: KWJFFGA6JI3E · pith_short_16: KWJFFGA6JI3EFRVK · pith_short_8: KWJFFGA6

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/KWJFFGA6JI3EFRVK7Y55PCFALG \
  | 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: 559252981e4a3642c6aafe3bd788a059a1e7fd40d559325dd823c9b12c83906d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3ef40889d7ef22dc1b288d739cd5752708df8c93796563a638fdf16017551dd6",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-08-14T05:18:43Z",
    "title_canon_sha256": "5f981701a740a47892b777c7431ae6696c3b0b4d53d14bab0b239ceaeea13fcf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.2787",
    "kind": "arxiv",
    "version": 2
  }
}