Pith Number

pith:KZXZBRSO

pith:2010:KZXZBRSOMQYN5U7TBUJ3KK7GHN

not attested not anchored not stored refs pending

Sparse Models and Methods for Optimal Instruments with an Application to Eminent Domain

Alexandre Belloni, Christian Hansen, Daniel Chen, Victor Chernozhukov

arxiv:1010.4345 v5 · 2010-10-21 · stat.ME · 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{KZXZBRSOMQYN5U7TBUJ3KK7GHN}

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	2026-05-18T00:33:44.551419Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

566f90c64e6430ded3f30d13b52be63b4bf95648f8bd8702cec16ae31c93c601

Aliases

arxiv: 1010.4345 · arxiv_version: 1010.4345v5 · doi: 10.48550/arxiv.1010.4345 · pith_short_12: KZXZBRSOMQYN · pith_short_16: KZXZBRSOMQYN5U7T · pith_short_8: KZXZBRSO

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/KZXZBRSOMQYN5U7TBUJ3KK7GHN \
  | 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: 566f90c64e6430ded3f30d13b52be63b4bf95648f8bd8702cec16ae31c93c601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "96056c0a7fc54112c84510221112999a938cd27fa09ada6df15fbdbd23be2d43",
    "cross_cats_sorted": [
      "econ.EM",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2010-10-21T00:49:43Z",
    "title_canon_sha256": "8c06a40b2c92e4e08d28b0492c4037de5a7a7ebdcfc73c77f5a7b3e3d3ef2649"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4345",
    "kind": "arxiv",
    "version": 5
  }
}