Pith Number

pith:BRO37A3K

pith:2015:BRO37A3KU6KPWIDEXJIMS2RN6M

not attested not anchored not stored refs pending

Selection bias when using instrumental variable methods to compare two treatments but more than two treatments are available

Ashkan Ertefaie, Dylan Small, James H. Flory, Sean Hennessy

arxiv:1502.07603 v2 · 2015-02-26 · 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{BRO37A3KU6KPWIDEXJIMS2RN6M}

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	2026-05-18T02:25:48.556485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c5dbf836aa794fb2064ba50c96a2df327fac0b2dc20fc20b2cb9b0339098488

Aliases

arxiv: 1502.07603 · arxiv_version: 1502.07603v2 · doi: 10.48550/arxiv.1502.07603 · pith_short_12: BRO37A3KU6KP · pith_short_16: BRO37A3KU6KPWIDE · pith_short_8: BRO37A3K

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/BRO37A3KU6KPWIDEXJIMS2RN6M \
  | 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: 0c5dbf836aa794fb2064ba50c96a2df327fac0b2dc20fc20b2cb9b0339098488

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "567be3b771e2dcb8fffe211bf51680c706e86742a7cd13fad6cd6b8871f8d22f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2015-02-26T15:49:35Z",
    "title_canon_sha256": "09657b7e00529853bd604a9fb57767473abfd2e58c7d908b4a6154800887d820"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07603",
    "kind": "arxiv",
    "version": 2
  }
}