Pith Number

pith:HJCRCXZR

pith:2026:HJCRCXZR5NKJEHF2UHYWK5B5LS

not attested not anchored not stored refs pending

From Unstructured Data to Demand Counterfactuals: Theory and Practice

Giovanni Compiani, Timothy Christensen

arxiv:2601.05374 v2 · 2026-01-08 · econ.EM · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HJCRCXZR5NKJEHF2UHYWK5B5LS}

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	2026-06-23T02:12:45.795414Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a45115f31eb54921cbaa1f165743d5cabcced9ec930696c54e2396d5b8c4cfc

Aliases

arxiv: 2601.05374 · arxiv_version: 2601.05374v2 · doi: 10.48550/arxiv.2601.05374 · pith_short_12: HJCRCXZR5NKJ · pith_short_16: HJCRCXZR5NKJEHF2 · pith_short_8: HJCRCXZR

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/HJCRCXZR5NKJEHF2UHYWK5B5LS \
  | 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: 3a45115f31eb54921cbaa1f165743d5cabcced9ec930696c54e2396d5b8c4cfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "427d2ceb440292f891ed21ebe309d09d53f846dc730c125770f56c007e612ee8",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2026-01-08T20:55:16Z",
    "title_canon_sha256": "d47fdb4f301c2547fa3a55deff18afa3b63aafc0cb3778695f6956850a165f82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.05374",
    "kind": "arxiv",
    "version": 2
  }
}