Pith Number

pith:GHIMK6HL

pith:2010:GHIMK6HLRIF5LASFA5WSZNM4SP

not attested not anchored not stored refs pending

Graph-Constrained Group Testing

Amin Karbasi, Mahdi Cheraghchi, Soheil Mohajer, Venkatesh Saligrama

arxiv:1001.1445 v2 · 2010-01-09 · cs.DM · 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{GHIMK6HLRIF5LASFA5WSZNM4SP}

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	2026-05-18T04:17:03.422964Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

31d0c578eb8a0bd58245076d2cb59c93d311a0a12c4540529ced21f958780e99

Aliases

arxiv: 1001.1445 · arxiv_version: 1001.1445v2 · doi: 10.48550/arxiv.1001.1445 · pith_short_12: GHIMK6HLRIF5 · pith_short_16: GHIMK6HLRIF5LASF · pith_short_8: GHIMK6HL

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/GHIMK6HLRIF5LASFA5WSZNM4SP \
  | 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: 31d0c578eb8a0bd58245076d2cb59c93d311a0a12c4540529ced21f958780e99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "410917d8f49fd34d35376fbea363b3c19f31974c401b7343d8fa7e85c60d7204",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2010-01-09T20:27:23Z",
    "title_canon_sha256": "7ff95adaf375ce1b49966ae1f9eb55a699512a7693ab315416df11eb8e5857d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.1445",
    "kind": "arxiv",
    "version": 2
  }
}