Pith Number

pith:DFQ4JPDG

pith:2026:DFQ4JPDGDLH52BNOUEHKLISLIC

not attested not anchored not stored refs pending

Robust Instrumental Variables: Sharp Rates and Inference under Adversarial Contamination

Anders Bredahl Kock, David Preinerstorfer

arxiv:2607.29532 v1 · 2026-07-31 · 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{DFQ4JPDGDLH52BNOUEHKLISLIC}

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	2026-08-03T01:37:37.559955Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1961c4bc661acfdd05aea10ea5a24b408b6661ff8e1d228e79a7f857777ac573

Aliases

arxiv: 2607.29532 · arxiv_version: 2607.29532v1 · doi: 10.48550/arxiv.2607.29532 · pith_short_12: DFQ4JPDGDLH5 · pith_short_16: DFQ4JPDGDLH52BNO · pith_short_8: DFQ4JPDG

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/DFQ4JPDGDLH52BNOUEHKLISLIC \
  | 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: 1961c4bc661acfdd05aea10ea5a24b408b6661ff8e1d228e79a7f857777ac573

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d30b36ff3c2bf5e8d9f94139fc9a45300a3866de54c660deae00217557f4fb0b",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2026-07-31T15:30:17Z",
    "title_canon_sha256": "d5420433b8e972f08ac5200e0c30b21a5bd71f3c4a4bada1b0556e1d2eef3ad0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29532",
    "kind": "arxiv",
    "version": 1
  }
}