Pith Number

pith:W7TZMMYG

pith:2015:W7TZMMYGAKTEYGSLYRUPBGAOGT

not attested not anchored not stored refs pending

Vector Linear Error Correcting Index Codes and Discrete Polymatroids

Anoop Thomas, B. Sundar Rajan

arxiv:1504.04960 v1 · 2015-04-20 · 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{W7TZMMYGAKTEYGSLYRUPBGAOGT}

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	2026-05-18T02:18:24.200179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7e796330602a64c1a4bc468f0980e34edccfca484d8fc94a57ce9866b63d233

Aliases

arxiv: 1504.04960 · arxiv_version: 1504.04960v1 · doi: 10.48550/arxiv.1504.04960 · pith_short_12: W7TZMMYGAKTE · pith_short_16: W7TZMMYGAKTEYGSL · pith_short_8: W7TZMMYG

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/W7TZMMYGAKTEYGSLYRUPBGAOGT \
  | 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: b7e796330602a64c1a4bc468f0980e34edccfca484d8fc94a57ce9866b63d233

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c6dbbd7d2d7731aefccae779fc9c3cdc50fff6bad6c527c5c16b77385b703ad",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-04-20T08:05:48Z",
    "title_canon_sha256": "d90d187d74b7791c585cd0f53ca1710ea0effa4f551fcaad28d57471355ff8d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04960",
    "kind": "arxiv",
    "version": 1
  }
}