Pith Number

pith:JEMTBUZV

pith:2012:JEMTBUZVRQHH2CPHO34KGRLME3

not attested not anchored not stored refs pending

Nonparametric instrumental regression with non-convex constraints

Anne Vanhems, Markus Grasmair, Otmar Scherzer

arxiv:1209.0304 v1 · 2012-09-03 · math.ST · math.NA · math.OC · 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{JEMTBUZVRQHH2CPHO34KGRLME3}

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	2026-05-18T01:54:48.151081Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

491930d3358c0e7d09e776f8a3456c26ff393eae26516817a0580796e73e3df4

Aliases

arxiv: 1209.0304 · arxiv_version: 1209.0304v1 · doi: 10.48550/arxiv.1209.0304 · pith_short_12: JEMTBUZVRQHH · pith_short_16: JEMTBUZVRQHH2CPH · pith_short_8: JEMTBUZV

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/JEMTBUZVRQHH2CPHO34KGRLME3 \
  | 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: 491930d3358c0e7d09e776f8a3456c26ff393eae26516817a0580796e73e3df4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d7316b637adb6f6bdc54dc26d9d7e57d869379d60a017c8de51629538eba3df1",
    "cross_cats_sorted": [
      "math.NA",
      "math.OC",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2012-09-03T11:03:29Z",
    "title_canon_sha256": "976a7c13ac84c09e5fc99194b60dc69c02e6b959528bd32f276d66c701901c8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.0304",
    "kind": "arxiv",
    "version": 1
  }
}