Pith Number

pith:LCEEAML5

pith:2016:LCEEAML5G7M45YASBF6NAOP7VI

not attested not anchored not stored refs pending

A Framework for Optimal Matching for Causal Inference

Nathan Kallus

arxiv:1606.05188 v2 · 2016-06-16 · 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{LCEEAML5G7M45YASBF6NAOP7VI}

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	2026-05-18T00:49:52.173036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

588840317d37d9cee012097cd039ffaa0636ade5c4eb3ba8aeeb44b725704bb2

Aliases

arxiv: 1606.05188 · arxiv_version: 1606.05188v2 · doi: 10.48550/arxiv.1606.05188 · pith_short_12: LCEEAML5G7M4 · pith_short_16: LCEEAML5G7M45YAS · pith_short_8: LCEEAML5

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/LCEEAML5G7M45YASBF6NAOP7VI \
  | 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: 588840317d37d9cee012097cd039ffaa0636ade5c4eb3ba8aeeb44b725704bb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34ede94c5b78726969170a03903b22c16daaa53dddee344a0fe698352fd90ac8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2016-06-16T14:02:23Z",
    "title_canon_sha256": "e7389e7c5b5916ba01f4039b1bb6bcff372bd87edc9810c3885a93ae86477315"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.05188",
    "kind": "arxiv",
    "version": 2
  }
}