Pith Number

pith:MIHMNQIO

pith:2019:MIHMNQIO2JW6KVAJGCLYAV5YYC

not attested not anchored not stored refs pending

Forward-Selected Panel Data Approach for Program Evaluation

Jingyi Huang, Zhentao Shi

arxiv:1908.05894 v3 · 2019-08-16 · 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{MIHMNQIO2JW6KVAJGCLYAV5YYC}

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	2026-07-05T02:36:06.325442Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

620ec6c10ed26de5540930978057b8c0871285a0f6df0aa9e1c8ff25c6b317e3

Aliases

arxiv: 1908.05894 · arxiv_version: 1908.05894v3 · doi: 10.48550/arxiv.1908.05894 · pith_short_12: MIHMNQIO2JW6 · pith_short_16: MIHMNQIO2JW6KVAJ · pith_short_8: MIHMNQIO

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/MIHMNQIO2JW6KVAJGCLYAV5YYC \
  | 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: 620ec6c10ed26de5540930978057b8c0871285a0f6df0aa9e1c8ff25c6b317e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dce36e4206e335292a1ee608e14f68bebd2eedeca1bda085c0a95ba1c0360d6c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2019-08-16T09:00:57Z",
    "title_canon_sha256": "721aacb1154b40a72e329cdc0a698f804013ff795124c8f3607e6e71bbed2f1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05894",
    "kind": "arxiv",
    "version": 3
  }
}