Pith Number

pith:LLKVENPL

pith:2019:LLKVENPLSPWWR4H7Y7G6GABOML

not attested not anchored not stored refs pending

Labor Market Outcomes and Early Schooling: Evidence from School Entry Policies Using Exact Date of Birth

Daniel Duque, Pedro Cavalcante Oliveira

arxiv:1905.13281 v1 · 2019-05-30 · econ.GN · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LLKVENPLSPWWR4H7Y7G6GABOML}

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	2026-05-17T23:44:35.431877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ad55235eb93ed68f0ffc7cde3002e62f63c84952871b3035bfc95ecf4fcf1f8

Aliases

arxiv: 1905.13281 · arxiv_version: 1905.13281v1 · doi: 10.48550/arxiv.1905.13281 · pith_short_12: LLKVENPLSPWW · pith_short_16: LLKVENPLSPWWR4H7 · pith_short_8: LLKVENPL

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/LLKVENPLSPWWR4H7Y7G6GABOML \
  | 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: 5ad55235eb93ed68f0ffc7cde3002e62f63c84952871b3035bfc95ecf4fcf1f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d46b7f66a7766436b4831f54303bb75c2f314ada32f120ea5df0efef7bee5a3b",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2019-05-30T20:04:34Z",
    "title_canon_sha256": "6a11fcfdc97ca5a8073a56f4acb3946ea68f8e13f5d0e8293887563a7813fb35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.13281",
    "kind": "arxiv",
    "version": 1
  }
}