Pith Number

pith:ZYVSFI7E

pith:2021:ZYVSFI7EWP547TMFFSOHIF4XVX

not attested not anchored not stored refs pending

An Optimal Transport Approach to Estimating Causal Effects via Nonlinear Difference-in-Differences

Florian Gunsilius, Philippe Rigollet, William Torous

arxiv:2108.05858 v2 · 2021-08-12 · stat.ME · econ.EM · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZYVSFI7EWP547TMFFSOHIF4XVX}

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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.

Cited by

1 paper in Pith

Sample Complexity of Transfer Learning: An Optimal Transport Approach

Receipt and verification

First computed	2026-07-05T07:53:45.214166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce2b22a3e4b3fbcfcd852c9c741797addb56c6a64b7d52585fb3aca5b0716307

Aliases

arxiv: 2108.05858 · arxiv_version: 2108.05858v2 · doi: 10.48550/arxiv.2108.05858 · pith_short_12: ZYVSFI7EWP54 · pith_short_16: ZYVSFI7EWP547TMF · pith_short_8: ZYVSFI7E

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/ZYVSFI7EWP547TMFFSOHIF4XVX \
  | 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: ce2b22a3e4b3fbcfcd852c9c741797addb56c6a64b7d52585fb3aca5b0716307

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4157fdce985b502866431ad71df57c2e29d09dac89003159c30359ef14ad1aa3",
    "cross_cats_sorted": [
      "econ.EM",
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2021-08-12T17:08:32Z",
    "title_canon_sha256": "a326a5d82c5dc6458db47a3729ce00006b88f2d26fd12739700e8ac1a26d50c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.05858",
    "kind": "arxiv",
    "version": 2
  }
}