Pith Number

pith:YXMSZDRG

pith:2025:YXMSZDRGZB23QWKW6NHTGJ4S5B

not attested not anchored not stored refs pending

Difference-in-Differences Designs: A Practitioner's Guide

Andrew Baker, Andrew Goodman-Bacon, Brantly Callaway, Pedro H. C. Sant'Anna, Scott Cunningham

arxiv:2503.13323 v3 · 2025-03-17 · econ.EM · 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{YXMSZDRGZB23QWKW6NHTGJ4S5B}

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.

Cited by

1 paper in Pith

Piece-wise linear isotonic regression

Receipt and verification

First computed	2026-07-05T11:22:37.929149Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c5d92c8e26c875b85956f34f332792e870b5b3ccf92e63df6d95b86706f9e17e

Aliases

arxiv: 2503.13323 · arxiv_version: 2503.13323v3 · doi: 10.48550/arxiv.2503.13323 · pith_short_12: YXMSZDRGZB23 · pith_short_16: YXMSZDRGZB23QWKW · pith_short_8: YXMSZDRG

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/YXMSZDRGZB23QWKW6NHTGJ4S5B \
  | 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: c5d92c8e26c875b85956f34f332792e870b5b3ccf92e63df6d95b86706f9e17e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "275f4abc379569cd386f6055620fd55aef6f53b146f201368ecb63940ef07a24",
    "cross_cats_sorted": [
      "stat.ME"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2025-03-17T16:01:22Z",
    "title_canon_sha256": "29302809d99f7ae6c084c9fba0d0ae1443a84316705f1521cf5e75c74914ac25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.13323",
    "kind": "arxiv",
    "version": 3
  }
}