Pith Number

pith:4W2JX6D4

pith:2013:4W2JX6D4PE4VZIE43CFHDDYGL2

not attested not anchored not stored refs pending

Near-Optimal Stochastic Threshold Group Testing

Chun Lam Chan, Mayank Bakshi, Sheng Cai, Sidharth Jaggi, Venkatesh Saligrama

arxiv:1304.6027 v3 · 2013-04-22 · 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{4W2JX6D4PE4VZIE43CFHDDYGL2}

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	2026-05-18T03:27:13.208669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e5b49bf87c79395ca09cd88a718f065ea7989e60b25621d53bf3c59d9d14cad9

Aliases

arxiv: 1304.6027 · arxiv_version: 1304.6027v3 · doi: 10.48550/arxiv.1304.6027 · pith_short_12: 4W2JX6D4PE4V · pith_short_16: 4W2JX6D4PE4VZIE4 · pith_short_8: 4W2JX6D4

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/4W2JX6D4PE4VZIE43CFHDDYGL2 \
  | 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: e5b49bf87c79395ca09cd88a718f065ea7989e60b25621d53bf3c59d9d14cad9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d81e29746c3b687937ddaf2a3443c17c184df75c2cba516aa3e060c88637856b",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2013-04-22T17:36:27Z",
    "title_canon_sha256": "feab02b85e32c3a57522ff09ce7387a33d2c50a7dd3b65c1070823f01ba81dfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6027",
    "kind": "arxiv",
    "version": 3
  }
}