Pith Number

pith:56PMN2MG

pith:2021:56PMN2MGKR7NYLJXBSV7LNDDRW

not attested not anchored not stored refs pending

Simple Diagnostics for Two-Way Fixed Effects

Pamela Jakiela

arxiv:2103.13229 v1 · 2021-03-24 · econ.GN · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56PMN2MGKR7NYLJXBSV7LNDDRW}

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	2026-07-05T02:26:07.384296Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef9ec6e986547edc2d370cabf5b4638da68ad1c6f93b05067ee6bf737a7f21b6

Aliases

arxiv: 2103.13229 · arxiv_version: 2103.13229v1 · doi: 10.48550/arxiv.2103.13229 · pith_short_12: 56PMN2MGKR7N · pith_short_16: 56PMN2MGKR7NYLJX · pith_short_8: 56PMN2MG

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/56PMN2MGKR7NYLJXBSV7LNDDRW \
  | 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: ef9ec6e986547edc2d370cabf5b4638da68ad1c6f93b05067ee6bf737a7f21b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ab979377a96cdfbbd2ceea53bb37fdb0e30cab5efec4723c5f45a98d5aa3de78",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2021-03-24T14:39:43Z",
    "title_canon_sha256": "9ab913619effbea258150dbb932d033913579eb370c0f7659c3a16530a0f6ebd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.13229",
    "kind": "arxiv",
    "version": 1
  }
}