Pith Number

pith:L2NA5QYJ

pith:2012:L2NA5QYJVMYTXLYVFTE7PZB3LN

not attested not anchored not stored refs pending

Optimal State-Space Reduction for Pedigree Hidden Markov Models

Bonnie Kirkpatrick, Kay Kirkpatrick

arxiv:1202.2468 v3 · 2012-02-11 · math.PR · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L2NA5QYJVMYTXLYVFTE7PZB3LN}

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	2026-05-18T03:11:24.204425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e9a0ec309ab313baf152cc9f7e43b5b7206d9f81c823ac4418de5e0148bca88

Aliases

arxiv: 1202.2468 · arxiv_version: 1202.2468v3 · doi: 10.48550/arxiv.1202.2468 · pith_short_12: L2NA5QYJVMYT · pith_short_16: L2NA5QYJVMYTXLYV · pith_short_8: L2NA5QYJ

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/L2NA5QYJVMYTXLYVFTE7PZB3LN \
  | 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: 5e9a0ec309ab313baf152cc9f7e43b5b7206d9f81c823ac4418de5e0148bca88

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ad81a3a5b22753c21edb2851fa8631f3a8536bdc3f1f9a04b211e2582dbf9b",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.PR",
    "submitted_at": "2012-02-11T20:20:47Z",
    "title_canon_sha256": "7fa7804b118f15b8f9b477a1fe466b94cb19139615d59c259da385212c00cae1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.2468",
    "kind": "arxiv",
    "version": 3
  }
}