Pith Number

pith:346SLX2C

pith:2019:346SLX2CCS6ZQ5ODKK46DSATX7

not attested not anchored not stored refs pending

lassopack: Model selection and prediction with regularized regression in Stata

Achim Ahrens, Christian B. Hansen, Mark E. Schaffer

arxiv:1901.05397 v1 · 2019-01-16 · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{346SLX2CCS6ZQ5ODKK46DSATX7}

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	2026-05-17T23:56:10.977983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df3d25df4214bd9875c352b9e1c813bfffa91138bcf906e420bfccb1078b68ed

Aliases

arxiv: 1901.05397 · arxiv_version: 1901.05397v1 · doi: 10.48550/arxiv.1901.05397 · pith_short_12: 346SLX2CCS6Z · pith_short_16: 346SLX2CCS6ZQ5OD · pith_short_8: 346SLX2C

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/346SLX2CCS6ZQ5ODKK46DSATX7 \
  | 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: df3d25df4214bd9875c352b9e1c813bfffa91138bcf906e420bfccb1078b68ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77e5a66900c0e5e04bab293907ffa46f5cb62e7c76d9a254d8b357af33169c75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2019-01-16T17:30:27Z",
    "title_canon_sha256": "7b96d29933f305d1fc2fd069e32c073911dc45dceb7a21206514d732464b6e87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.05397",
    "kind": "arxiv",
    "version": 1
  }
}