Pith Number

pith:CEPLIVFH

pith:2018:CEPLIVFHZ3EBWFZJ4AGE53VTDX

not attested not anchored not stored refs pending

Comparing seven variants of the Ensemble Kalman Filter: How many synthetic experiments are needed?

Gabriele Marquart, Harrie-Jan Hendricks Franssen, Johannes Keller

arxiv:1808.07843 v1 · 2018-08-23 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CEPLIVFHZ3EBWFZJ4AGE53VTDX}

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	2026-05-18T00:05:45.082967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

111eb454a7cec81b1729e00c4eeeb31dd05b1c990e1b14eff81ec4c0ec1452ae

Aliases

arxiv: 1808.07843 · arxiv_version: 1808.07843v1 · doi: 10.48550/arxiv.1808.07843 · pith_short_12: CEPLIVFHZ3EB · pith_short_16: CEPLIVFHZ3EBWFZJ · pith_short_8: CEPLIVFH

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/CEPLIVFHZ3EBWFZJ4AGE53VTDX \
  | 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: 111eb454a7cec81b1729e00c4eeeb31dd05b1c990e1b14eff81ec4c0ec1452ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a14a49f81216c13b1be0c94183f9528cdc04737639ac2b1f3c75f3696c8347b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2018-08-23T17:05:11Z",
    "title_canon_sha256": "370b060281ee9f5d55654405b281eeb8b8efb89a1ec4dee3f56dde0103aa7575"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07843",
    "kind": "arxiv",
    "version": 1
  }
}