Pith Number

pith:BKPIW2UK

pith:2026:BKPIW2UK5JPAV73KIFGGO32J3I

not attested not anchored not stored refs pending

Fixed-Effect Saturation Is Not Weak Identification: Certifying Inference under Measurement Error

Stanis{\l}aw M. S. Halkiewicz

arxiv:2608.06053 v1 · 2026-08-06 · econ.EM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKPIW2UK5JPAV73KIFGGO32J3I}

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	2026-08-07T01:39:46.828830Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a9e8b6a8aea5e0aff6a414c676f49da0b8bdb3549223eaad85d9bc57f09a285

Aliases

arxiv: 2608.06053 · arxiv_version: 2608.06053v1 · doi: 10.48550/arxiv.2608.06053 · pith_short_12: BKPIW2UK5JPA · pith_short_16: BKPIW2UK5JPAV73K · pith_short_8: BKPIW2UK

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/BKPIW2UK5JPAV73KIFGGO32J3I \
  | 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: 0a9e8b6a8aea5e0aff6a414c676f49da0b8bdb3549223eaad85d9bc57f09a285

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55da8a1535bd3790ac34eefae1745886e645553c76c4ca81cb63a8342fd40f35",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "econ.EM",
    "submitted_at": "2026-08-06T13:59:49Z",
    "title_canon_sha256": "f88d5682c527e86b0120736977ddd74812a4e8123bbf03276f6f2d1a57e9e61d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.06053",
    "kind": "arxiv",
    "version": 1
  }
}