Pith Number

pith:CPLEJEKI

pith:2014:CPLEJEKIVUSLERG2FTSS5PBD5G

not attested not anchored not stored refs pending

Matching for balance, pairing for heterogeneity in an observational study of the effectiveness of for-profit and not-for-profit high schools in Chile

Jos\'e R. Zubizarreta, Paul R. Rosenbaum, Ricardo D. Paredes

arxiv:1404.3584 v1 · 2014-04-14 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPLEJEKIVUSLERG2FTSS5PBD5G}

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	2026-05-18T02:54:14.901587Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13d6449148ad24b244da2ce52ebc23e99900a5a15389df71153647c2eb5635aa

Aliases

arxiv: 1404.3584 · arxiv_version: 1404.3584v1 · doi: 10.48550/arxiv.1404.3584 · pith_short_12: CPLEJEKIVUSL · pith_short_16: CPLEJEKIVUSLERG2 · pith_short_8: CPLEJEKI

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/CPLEJEKIVUSLERG2FTSS5PBD5G \
  | 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: 13d6449148ad24b244da2ce52ebc23e99900a5a15389df71153647c2eb5635aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b69869b443ad6fda04a7e5a20d66434f92e3a2f4d6395811147bd551a610e1f4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2014-04-14T14:01:42Z",
    "title_canon_sha256": "49bbf636e4fa30fd60fdc7f0a0a9063b613cb6b915198f80f327c12cf2d870f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.3584",
    "kind": "arxiv",
    "version": 1
  }
}