Pith Number

pith:QQPB6JRK

pith:2012:QQPB6JRKT26OO54M5UZ7HFXVGE

not attested not anchored not stored refs pending

Searching for Synergism Among Combinations of Drugs of Abuse and the Use of Isobolographic Analysis

Neil S. Lamarre, Ronald J. Tallarida, Uros Midic, Zoran Obradovic

arxiv:1202.4742 v1 · 2012-02-21 · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QQPB6JRKT26OO54M5UZ7HFXVGE}

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	2026-05-18T04:01:49.976583Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

841e1f262a9ebce7778ced33f396f5312a62d930f381e7c1f091f7a830e0c6d3

Aliases

arxiv: 1202.4742 · arxiv_version: 1202.4742v1 · doi: 10.48550/arxiv.1202.4742 · pith_short_12: QQPB6JRKT26O · pith_short_16: QQPB6JRKT26OO54M · pith_short_8: QQPB6JRK

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/QQPB6JRKT26OO54M5UZ7HFXVGE \
  | 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: 841e1f262a9ebce7778ced33f396f5312a62d930f381e7c1f091f7a830e0c6d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f9ccef3e3b07f36b7f2f143bc81f088b738031c70fc329d53738c446fcedc96d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.QM",
    "submitted_at": "2012-02-21T20:32:19Z",
    "title_canon_sha256": "0545993ccc32c74c437cea8e7a8be13698536d388adffa6adef233c46269e01d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4742",
    "kind": "arxiv",
    "version": 1
  }
}