Pith Number

pith:4B7VF5SS

pith:2023:4B7VF5SSDVX4HJRUTZXZFKE2BQ

not attested not anchored not stored refs pending

Transfer learning for piecewise-constant mean estimation: Optimality, $\ell_1$- and $\ell_0$-penalisation

Fan Wang, Yi Yu

arxiv:2310.05646 v4 · 2023-10-09 · stat.ME · 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{4B7VF5SSDVX4HJRUTZXZFKE2BQ}

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	2026-07-05T08:48:58.482052Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e07f52f6521d6fc3a6349e6f92a89a0c2ce1fc377bf2a28c2c6d3b08b4441d76

Aliases

arxiv: 2310.05646 · arxiv_version: 2310.05646v4 · doi: 10.48550/arxiv.2310.05646 · pith_short_12: 4B7VF5SSDVX4 · pith_short_16: 4B7VF5SSDVX4HJRU · pith_short_8: 4B7VF5SS

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/4B7VF5SSDVX4HJRUTZXZFKE2BQ \
  | 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: e07f52f6521d6fc3a6349e6f92a89a0c2ce1fc377bf2a28c2c6d3b08b4441d76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2b84830233f7a563ab2a635a9cfc02eb52275d3e73397fc85da02e788f738c6",
    "cross_cats_sorted": [
      "math.ST",
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ME",
    "submitted_at": "2023-10-09T11:58:16Z",
    "title_canon_sha256": "03ffaa2028a4902c07a953d6ab14756b5bfdd59a2214fd1d39ee7f68547aec5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.05646",
    "kind": "arxiv",
    "version": 4
  }
}