Pith Number

pith:OJW6UV5Y

pith:2013:OJW6UV5YWX33QLQFGOUNWAWESO

not attested not anchored not stored refs pending

Sparse Nested Markov models with Log-linear Parameters

Ilya Shpitser, James M. Robins, Robin J. Evans, Thomas S. Richardson

arxiv:1309.6863 v1 · 2013-09-26 · cs.LG · cs.AI · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OJW6UV5YWX33QLQFGOUNWAWESO}

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	2026-05-18T03:12:09.987398Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

726dea57b8b5f7b82e0533a8db02c49390643d880c8c0fa2ce42326d2b3659d7

Aliases

arxiv: 1309.6863 · arxiv_version: 1309.6863v1 · doi: 10.48550/arxiv.1309.6863 · pith_short_12: OJW6UV5YWX33 · pith_short_16: OJW6UV5YWX33QLQF · pith_short_8: OJW6UV5Y

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/OJW6UV5YWX33QLQFGOUNWAWESO \
  | 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: 726dea57b8b5f7b82e0533a8db02c49390643d880c8c0fa2ce42326d2b3659d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bde0adb5c0b649c2bd22d2f3cba04f77c93ba203d8f519ad5a389c5af0e0e47b",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-09-26T12:50:19Z",
    "title_canon_sha256": "21b32f9bde022037d1ee265e2a4e62c72f54e3457b93cd94daf9e548023d8893"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6863",
    "kind": "arxiv",
    "version": 1
  }
}