Pith Number

pith:Q5SZD4WX

pith:2016:Q5SZD4WXIAZXK6LJO6OZYD2CMN

not attested not anchored not stored refs pending

Spectral M-estimation with Applications to Hidden Markov Models

Dustin Tran, Finale Doshi-Velez, Minjae Kim

arxiv:1603.08815 v1 · 2016-03-29 · stat.CO · cs.LG · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q5SZD4WXIAZXK6LJO6OZYD2CMN}

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	2026-05-18T01:18:05.257829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

876591f2d74033757969779d9c0f426364d49735531f158721f733334707661d

Aliases

arxiv: 1603.08815 · arxiv_version: 1603.08815v1 · doi: 10.48550/arxiv.1603.08815 · pith_short_12: Q5SZD4WXIAZX · pith_short_16: Q5SZD4WXIAZXK6LJ · pith_short_8: Q5SZD4WX

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/Q5SZD4WXIAZXK6LJO6OZYD2CMN \
  | 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: 876591f2d74033757969779d9c0f426364d49735531f158721f733334707661d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7120e14ce6594834456b25aff82d7eb39de62b3b0b5374789bfe3071c7403b1d",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2016-03-29T15:34:29Z",
    "title_canon_sha256": "92d9f27d519231e6ce09d037390f5eb6e920942302d80ecc798024c22a2203c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1603.08815",
    "kind": "arxiv",
    "version": 1
  }
}