Pith Number

pith:WBRYZRFY

pith:2013:WBRYZRFYNYXMMKA4PW73OYLMYE

not attested not anchored not stored refs pending

Sparse Recovery with Very Sparse Compressed Counting

Cun-Hui Zhang, Ping Li, Tong Zhang

arxiv:1401.0201 v1 · 2013-12-31 · stat.ME · cs.DS · cs.IT · cs.LG · 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{WBRYZRFYNYXMMKA4PW73OYLMYE}

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	2026-05-18T03:03:30.773722Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b0638cc4b86e2ec6281c7dbfb7616cc129c2c76eb4aaf301a671077c6a76f3af

Aliases

arxiv: 1401.0201 · arxiv_version: 1401.0201v1 · doi: 10.48550/arxiv.1401.0201 · pith_short_12: WBRYZRFYNYXM · pith_short_16: WBRYZRFYNYXMMKA4 · pith_short_8: WBRYZRFY

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/WBRYZRFYNYXMMKA4PW73OYLMYE \
  | 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: b0638cc4b86e2ec6281c7dbfb7616cc129c2c76eb4aaf301a671077c6a76f3af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a66a7aa6d7e1cb9d51156e3361265756ea1745e418ccfeac45fd351b8b3a0d42",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.IT",
      "cs.LG",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2013-12-31T18:17:09Z",
    "title_canon_sha256": "4c6c1087baf8a62959da732b0e32d3a7513c52e673c0223e978b604aaa6ab686"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0201",
    "kind": "arxiv",
    "version": 1
  }
}