Pith Number

pith:7X5PDPIM

pith:2012:7X5PDPIMK2MRTERAEESCFUOYKO

not attested not anchored not stored refs pending

Semi-Quantitative Group Testing

Amin Emad, Olgica Milenkovic

arxiv:1202.2887 v2 · 2012-02-13 · 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{7X5PDPIMK2MRTERAEESCFUOYKO}

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	2026-05-18T03:55:13.888081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdfaf1bd0c5699199220212422d1d85386708bdef0664a84844b06b718e5c452

Aliases

arxiv: 1202.2887 · arxiv_version: 1202.2887v2 · doi: 10.48550/arxiv.1202.2887 · pith_short_12: 7X5PDPIMK2MR · pith_short_16: 7X5PDPIMK2MRTERA · pith_short_8: 7X5PDPIM

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/7X5PDPIMK2MRTERAEESCFUOYKO \
  | 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: fdfaf1bd0c5699199220212422d1d85386708bdef0664a84844b06b718e5c452

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2df5784f0902ff2792cba58d601529b53694b620eb9d722e9e9832ebe3de4a26",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-02-13T22:39:23Z",
    "title_canon_sha256": "0a31544f4fb4be6d415779c5c04edbcd4b94854f243dca01d95b18260a7a74bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2887",
    "kind": "arxiv",
    "version": 2
  }
}