Pith Number

pith:BMQ7MIGX

pith:2019:BMQ7MIGXRH63C4DTECL6OUW4BB

not attested not anchored not stored refs pending

Optimal adaptive group testing

Max Hahn-Klimroth, Philipp Loick

arxiv:1911.06647 v2 · 2019-11-15 · 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{BMQ7MIGXRH63C4DTECL6OUW4BB}

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	2026-07-05T00:20:02.809686Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b21f620d789fdb170732097e752dc084734613eb259ac13dee296012ad3b57a

Aliases

arxiv: 1911.06647 · arxiv_version: 1911.06647v2 · doi: 10.48550/arxiv.1911.06647 · pith_short_12: BMQ7MIGXRH63 · pith_short_16: BMQ7MIGXRH63C4DT · pith_short_8: BMQ7MIGX

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/BMQ7MIGXRH63C4DTECL6OUW4BB \
  | 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: 0b21f620d789fdb170732097e752dc084734613eb259ac13dee296012ad3b57a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "84b59f957e64cdef32441b888237bdb241f9e4bcc57bbef81641d9c0256a6cd6",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2019-11-15T14:13:31Z",
    "title_canon_sha256": "eb7892c3e9b385ab4f19918e5b3b7d88ec6332b88d7a20aca4225e5da3b507af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.06647",
    "kind": "arxiv",
    "version": 2
  }
}