Pith Number

pith:QCY22G4H

pith:2013:QCY22G4H32TLAWITDPPZBO2RG2

not attested not anchored not stored refs pending

A Heuristic Bayesian Approach to Knowledge Acquisition: Application to Analysis of Tissue-Type Plasminogen Activator

David M. Eddy, Robert Wolpert, Ross D. Shachter, Vic Hasselblad

arxiv:1304.2737 v1 · 2013-03-27 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCY22G4H32TLAWITDPPZBO2RG2}

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	2026-05-18T03:28:28.530069Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80b1ad1b87dea6b059131bdf90bb513697d601dfe09d3a0245c01c2d02e978da

Aliases

arxiv: 1304.2737 · arxiv_version: 1304.2737v1 · doi: 10.48550/arxiv.1304.2737 · pith_short_12: QCY22G4H32TL · pith_short_16: QCY22G4H32TLAWIT · pith_short_8: QCY22G4H

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/QCY22G4H32TLAWITDPPZBO2RG2 \
  | 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: 80b1ad1b87dea6b059131bdf90bb513697d601dfe09d3a0245c01c2d02e978da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c24a0e68ed945c6412502c5f420e8817e946d6a887a8186c89f997fcf5d15b6b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-03-27T19:48:23Z",
    "title_canon_sha256": "cd16d3c10f504fea0ef99bc2b89e6d3f5fea7c02d29f9ddbf6d201c1693f248a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2737",
    "kind": "arxiv",
    "version": 1
  }
}