Pith Number

pith:KW5YQ4PJ

pith:2017:KW5YQ4PJAYWYYK3HMN4GQB2C4Y

not attested not anchored not stored refs pending

On the optimality of some group testing algorithms

Matthew Aldridge

arxiv:1705.02708 v1 · 2017-05-07 · cs.IT · math.IT · math.PR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KW5YQ4PJAYWYYK3HMN4GQB2C4Y}

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	2026-05-18T00:29:46.103874Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55bb8871e9062d8c2b676378680742e61bb7cb216329dffedd81c51a5e2a8cca

Aliases

arxiv: 1705.02708 · arxiv_version: 1705.02708v1 · doi: 10.48550/arxiv.1705.02708 · pith_short_12: KW5YQ4PJAYWY · pith_short_16: KW5YQ4PJAYWYYK3H · pith_short_8: KW5YQ4PJ

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/KW5YQ4PJAYWYYK3HMN4GQB2C4Y \
  | 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: 55bb8871e9062d8c2b676378680742e61bb7cb216329dffedd81c51a5e2a8cca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af3420509dcc0f10d970cac7d875aadaeb32fb64e3274b7866553de4ada12125",
    "cross_cats_sorted": [
      "math.IT",
      "math.PR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2017-05-07T22:08:28Z",
    "title_canon_sha256": "6560fb1d26e5603a9a60c9eb9337244fc70c5f9567b21f57a7e82181d8da11e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.02708",
    "kind": "arxiv",
    "version": 1
  }
}