Pith Number

pith:O3EJP725

pith:2017:O3EJP725FJSM7UIBSJMJ6V36RD

not attested not anchored not stored refs pending

Subquadratic time encodable codes beating the Gilbert-Varshamov bound

Anand Kumar Narayanan, Matthew Weidner

arxiv:1712.10052 v2 · 2017-12-28 · cs.IT · cs.CC · math.IT · math.NT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O3EJP725FJSM7UIBSJMJ6V36RD}

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	2026-07-04T23:55:07.213982Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76c897ff5d2a64cfd10192589f577e88fc4bf468e054aaa8bd60522284508e72

Aliases

arxiv: 1712.10052 · arxiv_version: 1712.10052v2 · doi: 10.48550/arxiv.1712.10052 · pith_short_12: O3EJP725FJSM · pith_short_16: O3EJP725FJSM7UIB · pith_short_8: O3EJP725

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/O3EJP725FJSM7UIBSJMJ6V36RD \
  | 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: 76c897ff5d2a64cfd10192589f577e88fc4bf468e054aaa8bd60522284508e72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37045f3d6f374e61ae8973c72cdd398ddfc5a1a308a0e4fd467633f54d80a518",
    "cross_cats_sorted": [
      "cs.CC",
      "math.IT",
      "math.NT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-12-28T20:47:00Z",
    "title_canon_sha256": "89751e6e3600bdc20b587b4885f7becdbe3d592a78d0cac293360169aeb4dba4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.10052",
    "kind": "arxiv",
    "version": 2
  }
}