Pith Number

pith:3TLMYRX5

pith:2013:3TLMYRX5MS3VBAZDXALWDG56YP

not attested not anchored not stored refs pending

Semi-Instrumental Variables: A Test for Instrument Admissibility

Peter L. Spirtes, Richard Scheines, Tianjiao Chu

arxiv:1301.2261 v1 · 2013-01-10 · stat.ME · cs.AI · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3TLMYRX5MS3VBAZDXALWDG56YP}

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	2026-05-18T03:36:45.800593Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcd6cc46fd64b7508323b817619bbec3df00b6dbf11c9d48974ad4f11c93aa91

Aliases

arxiv: 1301.2261 · arxiv_version: 1301.2261v1 · doi: 10.48550/arxiv.1301.2261 · pith_short_12: 3TLMYRX5MS3V · pith_short_16: 3TLMYRX5MS3VBAZD · pith_short_8: 3TLMYRX5

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/3TLMYRX5MS3VBAZDXALWDG56YP \
  | 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: dcd6cc46fd64b7508323b817619bbec3df00b6dbf11c9d48974ad4f11c93aa91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b0aa0d11126da24a25a563efc7b99570ecae942d3a27b260b5d5370464de6ce",
    "cross_cats_sorted": [
      "cs.AI",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2013-01-10T16:22:57Z",
    "title_canon_sha256": "9e859383c0ed2536aea01d0d63fd54fa7afd2c5fdf92abf49204a5ed279d7df3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2261",
    "kind": "arxiv",
    "version": 1
  }
}