Pith Number

pith:ZBFKCYOH

pith:2015:ZBFKCYOHI6NEQHBM7X3F7X662Q

not attested not anchored not stored refs pending

Nonparametric instrumental variable estimation under monotonicity

Daniel Wilhelm, Denis Chetverikov

arxiv:1507.05270 v1 · 2015-07-19 · stat.AP · econ.EM · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZBFKCYOHI6NEQHBM7X3F7X662Q}

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	2026-05-18T00:34:24.956503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c84aa161c7479a481c2cfdf65fdfded42bac52ae9373f3e813c2ff1652c84e7e

Aliases

arxiv: 1507.05270 · arxiv_version: 1507.05270v1 · doi: 10.48550/arxiv.1507.05270 · pith_short_12: ZBFKCYOHI6NE · pith_short_16: ZBFKCYOHI6NEQHBM · pith_short_8: ZBFKCYOH

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/ZBFKCYOHI6NEQHBM7X3F7X662Q \
  | 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: c84aa161c7479a481c2cfdf65fdfded42bac52ae9373f3e813c2ff1652c84e7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d837c96e7259319457be6c30ec59922755f4d596e8afefae75b8aa8e678eb725",
    "cross_cats_sorted": [
      "econ.EM",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2015-07-19T10:04:41Z",
    "title_canon_sha256": "db554fea045338a8f9de03ded13e0df3d42f8dad2657b99d87bf5510b092c5ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.05270",
    "kind": "arxiv",
    "version": 1
  }
}