Pith Number

pith:5ZYI7C5X

pith:2017:5ZYI7C5XMPXSMJJ2WSHCN6H55G

not attested not anchored not stored refs pending

Index Coding: Rank-Invariant Extensions

Ashok Choudhary, Prasad Krishnan, Vamsi Krishna Gummadi

arxiv:1704.00687 v1 · 2017-04-03 · 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{5ZYI7C5XMPXSMJJ2WSHCN6H55G}

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	2026-05-18T00:47:21.605630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee708f8bb763ef26253ab48e26f8fde993466b86ce25efa6266bb4907e59309d

Aliases

arxiv: 1704.00687 · arxiv_version: 1704.00687v1 · doi: 10.48550/arxiv.1704.00687 · pith_short_12: 5ZYI7C5XMPXS · pith_short_16: 5ZYI7C5XMPXSMJJ2 · pith_short_8: 5ZYI7C5X

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/5ZYI7C5XMPXSMJJ2WSHCN6H55G \
  | 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: ee708f8bb763ef26253ab48e26f8fde993466b86ce25efa6266bb4907e59309d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40b58649356f1d2fa71aaf5da97391141ab40cfaf97c410397f3aac408a61377",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-04-03T17:07:02Z",
    "title_canon_sha256": "7f6f27716b4426d24e32d86936c0cdd2391cd308f9a6725d09967035e9290362"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.00687",
    "kind": "arxiv",
    "version": 1
  }
}