Pith Number

pith:COWUQ2A2

pith:2017:COWUQ2A2RJE6ZL3OZWF7GFWPS3

not attested not anchored not stored refs pending

Matching Using Sufficient Dimension Reduction for Causal Inference

Wei Luo, Yeying Zhu

arxiv:1702.00444 v1 · 2017-02-01 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{COWUQ2A2RJE6ZL3OZWF7GFWPS3}

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	2026-05-18T00:51:33.523404Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13ad48681a8a49ecaf6ecd8bf316cf96e5712c706f0cd2972c48b23e1a21336a

Aliases

arxiv: 1702.00444 · arxiv_version: 1702.00444v1 · doi: 10.48550/arxiv.1702.00444 · pith_short_12: COWUQ2A2RJE6 · pith_short_16: COWUQ2A2RJE6ZL3O · pith_short_8: COWUQ2A2

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/COWUQ2A2RJE6ZL3OZWF7GFWPS3 \
  | 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: 13ad48681a8a49ecaf6ecd8bf316cf96e5712c706f0cd2972c48b23e1a21336a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba20abdafd9b8ed1f5f8232fa130d3fec194a6eb3e2dcb3d74f9ccb0497efa3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2017-02-01T20:41:21Z",
    "title_canon_sha256": "d7b1d124d1e0c223a22e7eece61e14b322541141f03b2a2e37b4e70d8141af99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00444",
    "kind": "arxiv",
    "version": 1
  }
}