Pith Number

pith:XJQLWSXD

pith:2018:XJQLWSXD3ADDQOYSS3RJOOW5EE

not attested not anchored not stored refs pending

A Code Equivalence between Secure Network and Index Coding

Badri N. Vellambi, J\"org Kliewer, Lawrence Ong, Phee Lep Yeoh

arxiv:1804.09888 v1 · 2018-04-26 · 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{XJQLWSXD3ADDQOYSS3RJOOW5EE}

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	2026-05-18T00:17:27.570667Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba60bb4ae3d806383b1296e2973add213f2ca23b2e65548df1c7031dcdc57648

Aliases

arxiv: 1804.09888 · arxiv_version: 1804.09888v1 · doi: 10.48550/arxiv.1804.09888 · pith_short_12: XJQLWSXD3ADD · pith_short_16: XJQLWSXD3ADDQOYS · pith_short_8: XJQLWSXD

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/XJQLWSXD3ADDQOYSS3RJOOW5EE \
  | 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: ba60bb4ae3d806383b1296e2973add213f2ca23b2e65548df1c7031dcdc57648

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04c6fa759e9a2091bb7d9425cb83b78f3452ff9d6e3dde1f96fe6b3ed2b4da48",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2018-04-26T05:02:32Z",
    "title_canon_sha256": "05f07ad36e0f262cc68735c268eb11499ea701b8108cfdff49a7f55166cb19d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09888",
    "kind": "arxiv",
    "version": 1
  }
}