Pith Number

pith:L7KXWFGT

pith:2019:L7KXWFGTL4U7JQART4AJ77CTZG

not attested not anchored not stored refs pending

Detecting Changes in Hidden Markov Models

George V. Moustakides

arxiv:1901.08434 v2 · 2019-01-24 · math.ST · stat.AP · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L7KXWFGTL4U7JQART4AJ77CTZG}

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	2026-05-17T23:55:26.739448Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fd57b14d35f29f4c0119f009ffc53c9873071929bdfdd1856e590936743e648

Aliases

arxiv: 1901.08434 · arxiv_version: 1901.08434v2 · doi: 10.48550/arxiv.1901.08434 · pith_short_12: L7KXWFGTL4U7 · pith_short_16: L7KXWFGTL4U7JQAR · pith_short_8: L7KXWFGT

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/L7KXWFGTL4U7JQART4AJ77CTZG \
  | 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: 5fd57b14d35f29f4c0119f009ffc53c9873071929bdfdd1856e590936743e648

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e754df586984deb5ac818e7ced6dd37e00788f4c7ca406024e6595a38855ab71",
    "cross_cats_sorted": [
      "stat.AP",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2019-01-24T14:41:14Z",
    "title_canon_sha256": "20a551d9ff90603448032ece0e201650242fb337981442b9703b576993ffcbd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.08434",
    "kind": "arxiv",
    "version": 2
  }
}