Pith Number

pith:2MKMSMMX

pith:2019:2MKMSMMXQOJ5RQ2CAVY63UTIYO

not attested not anchored not stored refs pending

A New Algorithm for Two-Stage Group Testing

Ilya Vorobyev

arxiv:1901.06740 v2 · 2019-01-20 · 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{2MKMSMMXQOJ5RQ2CAVY63UTIYO}

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	2026-05-17T23:47:26.531766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d314c931978393d8c3420571edd268c384cd116a723d7ef8c53375b739c5517e

Aliases

arxiv: 1901.06740 · arxiv_version: 1901.06740v2 · doi: 10.48550/arxiv.1901.06740 · pith_short_12: 2MKMSMMXQOJ5 · pith_short_16: 2MKMSMMXQOJ5RQ2C · pith_short_8: 2MKMSMMX

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/2MKMSMMXQOJ5RQ2CAVY63UTIYO \
  | 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: d314c931978393d8c3420571edd268c384cd116a723d7ef8c53375b739c5517e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eae11db67fadf4c3a7983c405c75aceb201999ccca93c98e625ef2cb3acd2b96",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-01-20T22:02:54Z",
    "title_canon_sha256": "3559992e7df8dcfd7bad6e58877cb6d3060fbbbf4437b47663be673b59f2cf4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.06740",
    "kind": "arxiv",
    "version": 2
  }
}