Pith Number

pith:NQI5TKRL

pith:2017:NQI5TKRLHBCM4J76CU7HMH65GM

not attested not anchored not stored refs pending

Testing Sparsity-Inducing Penalties

Maryclare Griffin, Peter D. Hoff

arxiv:1712.06230 v2 · 2017-12-18 · stat.ME

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQI5TKRLHBCM4J76CU7HMH65GM}

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	2026-05-18T00:06:11.988209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c11d9aa2b3844ce27fe153e761fdd3320d79156f2019238878f17ee9ac49578

Aliases

arxiv: 1712.06230 · arxiv_version: 1712.06230v2 · doi: 10.48550/arxiv.1712.06230 · pith_short_12: NQI5TKRLHBCM · pith_short_16: NQI5TKRLHBCM4J76 · pith_short_8: NQI5TKRL

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/NQI5TKRLHBCM4J76CU7HMH65GM \
  | 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: 6c11d9aa2b3844ce27fe153e761fdd3320d79156f2019238878f17ee9ac49578

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1c09052199c04554deabaa05062a06677fddb4da59ea541d08c434a59dfc21b7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2017-12-18T02:45:59Z",
    "title_canon_sha256": "30da824bf481765f30b4e0dd24f3a0d3601fc8d39e988568473aafcf4fd981f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.06230",
    "kind": "arxiv",
    "version": 2
  }
}