Pith Number

pith:Y5HR7EHN

pith:2022:Y5HR7EHNFEVHHP44ELZNVC7QNE

not attested not anchored not stored refs pending

Hierarchical Ensemble Kalman Methods with Sparsity-Promoting Generalized Gamma Hyperpriors

Alexander Strang, Daniel Sanz-Alonso, Hwanwoo Kim

arxiv:2205.09322 v1 · 2022-05-19 · stat.CO · cs.NA · math.NA · math.OC · 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{Y5HR7EHNFEVHHP44ELZNVC7QNE}

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	2026-07-05T04:24:43.478035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c74f1f90ed292a73bf9c22f2da8bf0690726c8ed5efa8852b850d5a1ca022623

Aliases

arxiv: 2205.09322 · arxiv_version: 2205.09322v1 · doi: 10.48550/arxiv.2205.09322 · pith_short_12: Y5HR7EHNFEVH · pith_short_16: Y5HR7EHNFEVHHP44 · pith_short_8: Y5HR7EHN

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/Y5HR7EHNFEVHHP44ELZNVC7QNE \
  | 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: c74f1f90ed292a73bf9c22f2da8bf0690726c8ed5efa8852b850d5a1ca022623

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4867d478bdf3902fcad71206955e69de30cde9314cbcbc1089afb32eb9beef48",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.OC",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.CO",
    "submitted_at": "2022-05-19T05:12:56Z",
    "title_canon_sha256": "f7330abe63ad5a0c843676a2c8f6b00f1dc36b4455ee33ea78c8f076c5a7c0f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.09322",
    "kind": "arxiv",
    "version": 1
  }
}