Pith Number

pith:64MP5BCE

pith:2012:64MP5BCECVEG3Q7VLPJKDPIL6R

not attested not anchored not stored refs pending

Dual Regression

Richard Spady, Sami Stouli

arxiv:1210.6958 v4 · 2012-10-25 · stat.ME · econ.EM · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{64MP5BCECVEG3Q7VLPJKDPIL6R}

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	2026-05-18T00:05:00.989876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f718fe844415486dc3f55bd2a1bd0bf457f6552dbdf315ee11ca15573ab4be87

Aliases

arxiv: 1210.6958 · arxiv_version: 1210.6958v4 · doi: 10.48550/arxiv.1210.6958 · pith_short_12: 64MP5BCECVEG · pith_short_16: 64MP5BCECVEG3Q7V · pith_short_8: 64MP5BCE

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/64MP5BCECVEG3Q7VLPJKDPIL6R \
  | 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: f718fe844415486dc3f55bd2a1bd0bf457f6552dbdf315ee11ca15573ab4be87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "741e454f22ceee3b33717b13f4922c4b8cc8be90f82174cf3d62d3ecd17f7aad",
    "cross_cats_sorted": [
      "econ.EM",
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2012-10-25T19:25:04Z",
    "title_canon_sha256": "d52d6ab5bf15f2f84bd592a57a5b210b58e693b3e7911c61e78528375b54dbaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.6958",
    "kind": "arxiv",
    "version": 4
  }
}