Pith Number

pith:HPR3CTL6

pith:2008:HPR3CTL6XHBPQNYBZLXZKYMBPQ

not attested not anchored not stored refs pending

Network Protection Codes Against Link Failures Using Network Coding

Ahmed E. Kamal, Salah A. Aly

arxiv:0809.1258 v2 · 2008-09-07 · cs.IT · 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{HPR3CTL6XHBPQNYBZLXZKYMBPQ}

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	2026-05-18T00:58:48.384331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3be3b14d7eb9c2f83701caef9561817c142695f8cded968d2c8cd56274902e9d

Aliases

arxiv: 0809.1258 · arxiv_version: 0809.1258v2 · doi: 10.48550/arxiv.0809.1258 · pith_short_12: HPR3CTL6XHBP · pith_short_16: HPR3CTL6XHBPQNYB · pith_short_8: HPR3CTL6

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/HPR3CTL6XHBPQNYBZLXZKYMBPQ \
  | 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: 3be3b14d7eb9c2f83701caef9561817c142695f8cded968d2c8cd56274902e9d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a81d340643a454b52050d415d4b4f02c4bb44ffa9a0e8b214813879490e7716",
    "cross_cats_sorted": [
      "cs.NI",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2008-09-07T23:03:22Z",
    "title_canon_sha256": "63ab5029b2520ccf775e67f110108f05bd201f375779c9e7228bfeafca6914b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0809.1258",
    "kind": "arxiv",
    "version": 2
  }
}