Pith Number

pith:LTDHA7WT

pith:2019:LTDHA7WTT5ZYOJDMUF4JJWJZPL

not attested not anchored not stored refs pending

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Tomasz Maszczyk, W{\l}odzis{\l}aw Duch

arxiv:1901.09643 v1 · 2019-01-28 · cs.LG · 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{LTDHA7WTT5ZYOJDMUF4JJWJZPL}

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	2026-05-17T23:55:24.234282Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cc6707ed39f7387246ca17894d9397af80172af6367a8275224223a8c1b4827

Aliases

arxiv: 1901.09643 · arxiv_version: 1901.09643v1 · doi: 10.48550/arxiv.1901.09643 · pith_short_12: LTDHA7WTT5ZY · pith_short_16: LTDHA7WTT5ZYOJDM · pith_short_8: LTDHA7WT

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/LTDHA7WTT5ZYOJDMUF4JJWJZPL \
  | 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: 5cc6707ed39f7387246ca17894d9397af80172af6367a8275224223a8c1b4827

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ecd81c23c04c6723253578f916ab7a3d4da01ce59efde3cb2254165256a7b16",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-01-28T13:49:19Z",
    "title_canon_sha256": "99ed23c318fc2a740339f16abb80a4cd4529c1fc43d4f5664216c70652beaa58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.09643",
    "kind": "arxiv",
    "version": 1
  }
}