Pith Number

pith:RGME3TGA

pith:2025:RGME3TGA4L7C2TZN5GNB24VMBF

not attested not anchored not stored refs pending

Alpha-Beta HMM: Hidden Markov Model Filtering with Equal Exit Probabilities and a Step-Size Parameter

Dongyan Sui, Haotian Pu, Siyang Leng, Stefan Vlaski

arxiv:2504.01759 v3 · 2025-04-02 · eess.SY · cs.SY · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RGME3TGA4L7C2TZN5GNB24VMBF}

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	2026-07-05T11:18:20.064112Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

89984dccc0e2fe2d4f2de99a1d72ac096eac597e3b2c74b17e8dc33a978cf609

Aliases

arxiv: 2504.01759 · arxiv_version: 2504.01759v3 · doi: 10.48550/arxiv.2504.01759 · pith_short_12: RGME3TGA4L7C · pith_short_16: RGME3TGA4L7C2TZN · pith_short_8: RGME3TGA

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/RGME3TGA4L7C2TZN5GNB24VMBF \
  | 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: 89984dccc0e2fe2d4f2de99a1d72ac096eac597e3b2c74b17e8dc33a978cf609

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8953411fd231fe9d6af4d1f65d576316264ef347bdc53d33b7459eff5688e4c3",
    "cross_cats_sorted": [
      "cs.SY",
      "stat.AP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2025-04-02T14:16:13Z",
    "title_canon_sha256": "775126f1d94e4ae2cc10a31debe86b33231db0a42c27e5d310d78d78b93ef1d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.01759",
    "kind": "arxiv",
    "version": 3
  }
}