Pith Number

pith:5HJOFPUW

pith:2014:5HJOFPUW5FULDV6OGXSNGI26LU

not attested not anchored not stored refs pending

Minimal Realization Problems for Hidden Markov Models

Munther Dahleh, Qingqing Huang, Rong Ge, Sham Kakade

arxiv:1411.3698 v2 · 2014-11-13 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5HJOFPUW5FULDV6OGXSNGI26LU}

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	2026-05-18T01:24:30.514987Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9d2e2be96e968b1d7ce35e4d3235e5d19909303c9f4bf4cca8687d32ed94703

Aliases

arxiv: 1411.3698 · arxiv_version: 1411.3698v2 · doi: 10.48550/arxiv.1411.3698 · pith_short_12: 5HJOFPUW5FUL · pith_short_16: 5HJOFPUW5FULDV6O · pith_short_8: 5HJOFPUW

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/5HJOFPUW5FULDV6OGXSNGI26LU \
  | 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: e9d2e2be96e968b1d7ce35e4d3235e5d19909303c9f4bf4cca8687d32ed94703

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3927ccb95ce9e8791e06cff6d9d76d74f702214a0960212b96b136adafbaf3d8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2014-11-13T20:30:06Z",
    "title_canon_sha256": "54548bf291cf96feda8c867aafe9b649ea72cc2f9aa0a37fb8234fc8e1b24773"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.3698",
    "kind": "arxiv",
    "version": 2
  }
}