Pith Number

pith:SY4SKPW5

pith:2017:SY4SKPW5YQ3BR5SXT44LV5GONM

not attested not anchored not stored refs pending

Parameterizations for Ensemble Kalman Inversion

Andrew M. Stuart, Lassi Roininen, Marco A. Iglesias, Neil K. Chada

arxiv:1709.01781 v2 · 2017-09-06 · 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{SY4SKPW5YQ3BR5SXT44LV5GONM}

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	2026-05-18T00:16:31.461842Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9639253eddc43618f6579f38baf4ce6b21bd44a48fc1be9848253f33858949f8

Aliases

arxiv: 1709.01781 · arxiv_version: 1709.01781v2 · doi: 10.48550/arxiv.1709.01781 · pith_short_12: SY4SKPW5YQ3B · pith_short_16: SY4SKPW5YQ3BR5SX · pith_short_8: SY4SKPW5

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/SY4SKPW5YQ3BR5SXT44LV5GONM \
  | 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: 9639253eddc43618f6579f38baf4ce6b21bd44a48fc1be9848253f33858949f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5dcac35024a6cde3fe565276d55feb3795c966347c22e5c83a32c06f4a8274cc",
    "cross_cats_sorted": [
      "math.OC",
      "stat.ME"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-09-06T11:44:34Z",
    "title_canon_sha256": "562d2836b01bf7e80f741c1352928a4194b2f991bfef66af93fdc25d4da5c82a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.01781",
    "kind": "arxiv",
    "version": 2
  }
}