Pith Number

pith:E35LPBEQ

pith:2018:E35LPBEQQ6QDLAZCBN6CHBX5CA

not attested not anchored not stored refs pending

Analysis of Hierarchical Ensemble Kalman Inversion

Neil K. Chada

arxiv:1801.00847 v1 · 2018-01-02 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E35LPBEQQ6QDLAZCBN6CHBX5CA}

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	2026-05-18T00:26:48.605985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26fab7849087a03583220b7c2386fd10327e1583c70e226c219fec698866acd6

Aliases

arxiv: 1801.00847 · arxiv_version: 1801.00847v1 · doi: 10.48550/arxiv.1801.00847 · pith_short_12: E35LPBEQQ6QD · pith_short_16: E35LPBEQQ6QDLAZC · pith_short_8: E35LPBEQ

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/E35LPBEQQ6QDLAZCBN6CHBX5CA \
  | 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: 26fab7849087a03583220b7c2386fd10327e1583c70e226c219fec698866acd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d2f5f83ce1b529d0277bdc5835e856f4aba2df4e7da2d9da367568e80afeafd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-01-02T21:52:33Z",
    "title_canon_sha256": "e8764dd9f3fc0bf167d7b16b02fe5060a950508971b8bfec2cf3a8bb09a8a23d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00847",
    "kind": "arxiv",
    "version": 1
  }
}