Pith Number

pith:BJRTGZHG

pith:2015:BJRTGZHG7G7QSLWEYIQUWUHFKW

not attested not anchored not stored refs pending

Optimal method in multiple regression with structural changes

Fuqi Chen, S\'ev\'erien Nkurunziza

arxiv:1509.05581 v1 · 2015-09-18 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BJRTGZHG7G7QSLWEYIQUWUHFKW}

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	2026-05-18T01:09:50.476700Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a633364e6f9bf092ec4c2214b50e55590276f5d4a2c79ac22b478de69f3cb83

Aliases

arxiv: 1509.05581 · arxiv_version: 1509.05581v1 · doi: 10.48550/arxiv.1509.05581 · pith_short_12: BJRTGZHG7G7Q · pith_short_16: BJRTGZHG7G7QSLWE · pith_short_8: BJRTGZHG

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/BJRTGZHG7G7QSLWEYIQUWUHFKW \
  | 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: 0a633364e6f9bf092ec4c2214b50e55590276f5d4a2c79ac22b478de69f3cb83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff7d0eb797b5bbe4484a06fb74f22e3caceb4654e439074a9bf20e4c8f194268",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2015-09-18T10:37:55Z",
    "title_canon_sha256": "7b1d601873464f028cfb7e424601b4e3417b831c790478a1683a8ce9b8c8833d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05581",
    "kind": "arxiv",
    "version": 1
  }
}