Pith Number

pith:C42USR3W

pith:2017:C42USR3W3PXP5XT4O5JIRUTF2G

not attested not anchored not stored refs pending

Exact computation of GMM estimators for instrumental variable quantile regression models

Le-Yu Chen, Sokbae Lee

arxiv:1703.09382 v1 · 2017-03-28 · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C42USR3W3PXP5XT4O5JIRUTF2G}

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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	2026-05-18T00:47:44.729213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1735494776dbeefede7c775288d265d18e96bd611d65e294f636b9e7e3196180

Aliases

arxiv: 1703.09382 · arxiv_version: 1703.09382v1 · doi: 10.48550/arxiv.1703.09382 · pith_short_12: C42USR3W3PXP · pith_short_16: C42USR3W3PXP5XT4 · pith_short_8: C42USR3W

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/C42USR3W3PXP5XT4O5JIRUTF2G \
  | 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: 1735494776dbeefede7c775288d265d18e96bd611d65e294f636b9e7e3196180

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6f2eb715722891ab699850aa2bebf05cd57043c5bc0c2fe095b18143e757ec3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2017-03-28T03:08:35Z",
    "title_canon_sha256": "a38d32f80a2f578c0e160eadb903ad8d4897c4e49f7b3155dde291aad9d6c62b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.09382",
    "kind": "arxiv",
    "version": 1
  }
}