Pith Number

pith:DEF3MXFJ

pith:2015:DEF3MXFJYS6FR33BSMCKS2CJ7N

not attested not anchored not stored refs pending

Evaluation of Spectral Learning for the Identification of Hidden Markov Models

Bo Wahlberg, Cristian R. Rojas, Robert Mattila

arxiv:1507.06346 v1 · 2015-07-22 · stat.ML · cs.LG · math.OC

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DEF3MXFJYS6FR33BSMCKS2CJ7N}

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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	2026-05-18T01:36:25.191669Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

190bb65ca9c4bc58ef619304a96849fb69a3e608990ddf9128faa4938d0ace82

Aliases

arxiv: 1507.06346 · arxiv_version: 1507.06346v1 · doi: 10.48550/arxiv.1507.06346 · pith_short_12: DEF3MXFJYS6F · pith_short_16: DEF3MXFJYS6FR33B · pith_short_8: DEF3MXFJ

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/DEF3MXFJYS6FR33BSMCKS2CJ7N \
  | 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: 190bb65ca9c4bc58ef619304a96849fb69a3e608990ddf9128faa4938d0ace82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d05cd166b67d46fb6965df18735224ce3e175f7fe87a38a58c8ccee15c14a6ba",
    "cross_cats_sorted": [
      "cs.LG",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-07-22T21:49:19Z",
    "title_canon_sha256": "bdd72e4cacea8ab952c531cf97004b72cbc64c969fc1a91fba967dec68ccf8eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.06346",
    "kind": "arxiv",
    "version": 1
  }
}