Pith Number

pith:2HTJ2CWV

pith:2020:2HTJ2CWVOFXSDI5T7L5KPHAUSK

not attested not anchored not stored refs pending

Hybrid modeling: Applications in real-time diagnosis

Alexander Feldman, Ion Matei, Johan de Kleer, Rahul Rai, Souma Chowdhury

arxiv:2003.02671 v1 · 2020-03-04 · eess.SP · cs.LG · math.DS · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2HTJ2CWVOFXSDI5T7L5KPHAUSK}

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	2026-07-05T00:45:58.592990Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1e69d0ad5716f21a3b3fafaa79c1492a164f3e87c0877a3242834d6cb3fe2ef

Aliases

arxiv: 2003.02671 · arxiv_version: 2003.02671v1 · doi: 10.48550/arxiv.2003.02671 · pith_short_12: 2HTJ2CWVOFXS · pith_short_16: 2HTJ2CWVOFXSDI5T · pith_short_8: 2HTJ2CWV

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/2HTJ2CWVOFXSDI5T7L5KPHAUSK \
  | 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: d1e69d0ad5716f21a3b3fafaa79c1492a164f3e87c0877a3242834d6cb3fe2ef

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2436ab56f2df7b8bd915197a971ebe9b3ec2556efdc641ad70b15352b3ce968d",
    "cross_cats_sorted": [
      "cs.LG",
      "math.DS",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2020-03-04T00:44:57Z",
    "title_canon_sha256": "9b63bc62a88684ae08d3bb687412c9b9a1aebdaa95585491ad4707ae675b101b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.02671",
    "kind": "arxiv",
    "version": 1
  }
}