Pith Number

pith:H6JODNWW

pith:2013:H6JODNWWC7VQZKNWESTUMERCWQ

not attested not anchored not stored refs pending

An Unsupervised Approach for Automatic Activity Recognition based on Hidden Markov Model Regression

Dorra Trabelsi, Faicel Chamroukhi, Latifa Oukhellou, Samer Mohammed, Yacine Amirat

arxiv:1312.6965 v1 · 2013-12-25 · stat.ML · cs.CV · 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{H6JODNWWC7VQZKNWESTUMERCWQ}

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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	2026-05-18T03:03:46.313167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3f92e1b6d617eb0ca9b624a7461222b421dd02b6e3b31847528a927d554f2762

Aliases

arxiv: 1312.6965 · arxiv_version: 1312.6965v1 · doi: 10.48550/arxiv.1312.6965 · pith_short_12: H6JODNWWC7VQ · pith_short_16: H6JODNWWC7VQZKNW · pith_short_8: H6JODNWW

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/H6JODNWWC7VQZKNWESTUMERCWQ \
  | 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: 3f92e1b6d617eb0ca9b624a7461222b421dd02b6e3b31847528a927d554f2762

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c075773a52409f02993c1bf9f15e0b8cc4143886e9ab5c442a5098846a6eb41b",
    "cross_cats_sorted": [
      "cs.CV",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2013-12-25T13:03:12Z",
    "title_canon_sha256": "5e3a41e480033655dd0f40888bb4ee76c3d584a8944cc40c13347658a1e43b5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.6965",
    "kind": "arxiv",
    "version": 1
  }
}