Pith Number

pith:CKAS56RY

pith:2022:CKAS56RYYJQ2NPWOCNTXDTWLE4

not attested not anchored not stored refs pending

Exploiting Independent Instruments: Identification and Distribution Generalization

Jonas Peters, Leonard Henckel, Niklas Pfister, Sorawit Saengkyongam

arxiv:2202.01864 v2 · 2022-02-03 · stat.ML · cs.LG · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CKAS56RYYJQ2NPWOCNTXDTWLE4}

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	2026-07-05T04:59:58.838951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12812efa38c261a6bece136771cecb272dc9cf9dd240a6ec9a11d5a409f08ec1

Aliases

arxiv: 2202.01864 · arxiv_version: 2202.01864v2 · doi: 10.48550/arxiv.2202.01864 · pith_short_12: CKAS56RYYJQ2 · pith_short_16: CKAS56RYYJQ2NPWO · pith_short_8: CKAS56RY

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/CKAS56RYYJQ2NPWOCNTXDTWLE4 \
  | 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: 12812efa38c261a6bece136771cecb272dc9cf9dd240a6ec9a11d5a409f08ec1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13277783475ede739948693b288f9c9eb9d6b7d2c2972aba0590d0ce19b67f48",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2022-02-03T21:49:04Z",
    "title_canon_sha256": "3fa378639d5b8a057080463e49ef48a9e507b41840a50812572f3a2951d6dba5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.01864",
    "kind": "arxiv",
    "version": 2
  }
}