Pith Number

pith:4EAAQWM3

pith:2015:4EAAQWM36QQDZBLNEVXS22NHKQ

not attested not anchored not stored refs pending

Second-Order Belief Hidden Markov Models

Arnaud Martin (IRISA), Jungyeul Park (IRISA), Mouna Chebbah (IRISA), Siwar Jendoubi (IRISA)

arxiv:1501.05613 v1 · 2015-01-22 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4EAAQWM36QQDZBLNEVXS22NHKQ}

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	2026-05-18T02:28:54.371743Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e10008599bf4203c856d256f2d69a75434f60b4bb3621d945d40276714403aa9

Aliases

arxiv: 1501.05613 · arxiv_version: 1501.05613v1 · doi: 10.48550/arxiv.1501.05613 · pith_short_12: 4EAAQWM36QQD · pith_short_16: 4EAAQWM36QQDZBLN · pith_short_8: 4EAAQWM3

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/4EAAQWM36QQDZBLNEVXS22NHKQ \
  | 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: e10008599bf4203c856d256f2d69a75434f60b4bb3621d945d40276714403aa9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc1ea142fc49138e9f30b1df8b046d4f88af6374a7496679297c6d35ef457921",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2015-01-22T19:56:34Z",
    "title_canon_sha256": "664c64949d3911bb264283829da962d22c4d7f4779c6c06b3dbb1c2622ad97e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.05613",
    "kind": "arxiv",
    "version": 1
  }
}