Pith Number

pith:UF2VUQJT

pith:2018:UF2VUQJTZFDCPVXD2RDP4JEHYO

not attested not anchored not stored refs pending

Optimizing the tie-breaker regression discontinuity design

Art B. Owen, Hal Varian

arxiv:1808.07563 v3 · 2018-08-22 · stat.ME · 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{UF2VUQJTZFDCPVXD2RDP4JEHYO}

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	2026-07-05T01:23:33.478063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1755a4133c94627d6e3d446fe2487c3959db1b11676051fe32a466b52b956e1

Aliases

arxiv: 1808.07563 · arxiv_version: 1808.07563v3 · doi: 10.48550/arxiv.1808.07563 · pith_short_12: UF2VUQJTZFDC · pith_short_16: UF2VUQJTZFDCPVXD · pith_short_8: UF2VUQJT

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/UF2VUQJTZFDCPVXD2RDP4JEHYO \
  | 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: a1755a4133c94627d6e3d446fe2487c3959db1b11676051fe32a466b52b956e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03e2b15db7868d50fb05b608f927df9c1d080ee54b4d27ddf99d639fe9d8ac9a",
    "cross_cats_sorted": [
      "econ.EM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2018-08-22T20:57:38Z",
    "title_canon_sha256": "5c4e8a5eb8f91265f75586121b24a52d40281bceb492b9643f8a712894c9b5a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07563",
    "kind": "arxiv",
    "version": 3
  }
}