Pith Number

pith:YRWJGXGW

pith:2012:YRWJGXGWB4X3ARSEZA3JQLE3MT

not attested not anchored not stored refs pending

On the equivalence between standard and sequentially ordered hidden Markov models

Nicolas Chopin

arxiv:1201.6161 v1 · 2012-01-30 · math.ST · 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{YRWJGXGWB4X3ARSEZA3JQLE3MT}

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	2026-05-18T04:03:33.536285Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c46c935cd60f2fb04644c836982c9b64f752384c18b923aac813fcdcc8450e13

Aliases

arxiv: 1201.6161 · arxiv_version: 1201.6161v1 · doi: 10.48550/arxiv.1201.6161 · pith_short_12: YRWJGXGWB4X3 · pith_short_16: YRWJGXGWB4X3ARSE · pith_short_8: YRWJGXGW

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/YRWJGXGWB4X3ARSEZA3JQLE3MT \
  | 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: c46c935cd60f2fb04644c836982c9b64f752384c18b923aac813fcdcc8450e13

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4628634dfea0dec815260a5cb40b78be9d8eeb0fb1b00ddbb6e8190f640d93a",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-01-30T10:38:22Z",
    "title_canon_sha256": "93d3e20f793132be92f9e1c18ca7f0c0554ecf3c38d25a6fe374e1d913cee305"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6161",
    "kind": "arxiv",
    "version": 1
  }
}