Pith Number

pith:Z5I63E4S

pith:2016:Z5I63E4SU2YQVJJ6QTMJ73RF2X

not attested not anchored not stored refs pending

Testing for unobserved heterogeneous treatment effects

Haiqing Xu, TaCheng Huang, YuChin Hsu

arxiv:1611.06304 v1 · 2016-11-19 · 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{Z5I63E4SU2YQVJJ6QTMJ73RF2X}

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	2026-05-18T00:57:39.080934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf51ed9392a6b10aa53e84d89fee25d5d9ee1b33fa77ee64489a5c0211904eac

Aliases

arxiv: 1611.06304 · arxiv_version: 1611.06304v1 · doi: 10.48550/arxiv.1611.06304 · pith_short_12: Z5I63E4SU2YQ · pith_short_16: Z5I63E4SU2YQVJJ6 · pith_short_8: Z5I63E4S

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/Z5I63E4SU2YQVJJ6QTMJ73RF2X \
  | 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: cf51ed9392a6b10aa53e84d89fee25d5d9ee1b33fa77ee64489a5c0211904eac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e3ec7af0e733f152736b3ddb18d928c867079f842e71ae732fa93a9b2764342e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-11-19T04:43:55Z",
    "title_canon_sha256": "e8aa98ddb96ed7943d442fbef3325cdc03b6828bc00e8e68987c31c51fa3601c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.06304",
    "kind": "arxiv",
    "version": 1
  }
}