Pith Number

pith:LHQAQHTL

pith:2013:LHQAQHTLMUGD3ES4WW5EWCQSUZ

not attested not anchored not stored refs pending

Adaptive piecewise polynomial estimation via trend filtering

Ryan J. Tibshirani

arxiv:1304.2986 v2 · 2013-04-10 · math.ST · stat.ME · stat.ML · 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{LHQAQHTLMUGD3ES4WW5EWCQSUZ}

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	2026-05-18T02:55:57.491699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59e0081e6b650c3d925cb5ba4b0a12a647457c98f0a2679a2f70abebbaac4671

Aliases

arxiv: 1304.2986 · arxiv_version: 1304.2986v2 · doi: 10.48550/arxiv.1304.2986 · pith_short_12: LHQAQHTLMUGD · pith_short_16: LHQAQHTLMUGD3ES4 · pith_short_8: LHQAQHTL

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/LHQAQHTLMUGD3ES4WW5EWCQSUZ \
  | 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: 59e0081e6b650c3d925cb5ba4b0a12a647457c98f0a2679a2f70abebbaac4671

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a2e17d7c6281e7c94894fa5a18c090b82118a4b5a73c027d1638b978ed4a584",
    "cross_cats_sorted": [
      "stat.ME",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2013-04-10T15:02:53Z",
    "title_canon_sha256": "824f508f2a6037667acc57b87cd8af419af65a8ecb3943797a20b083268cad1c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2986",
    "kind": "arxiv",
    "version": 2
  }
}