Pith Number

pith:4ERJXS7S

pith:2011:4ERJXS7SQ7L5LTOVWE3EC242Y7

not attested not anchored not stored refs pending

Sensitivity And Out-Of-Sample Error in Continuous Time Data Assimilation

Ivan G. Szendro, Jochen Br\"ocker

arxiv:1108.5756 v1 · 2011-08-29 · physics.ao-ph · cs.SY · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ERJXS7SQ7L5LTOVWE3EC242Y7}

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	2026-05-18T02:00:45.095640Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1229bcbf287d7d5cdd5b136416b9ac7ca4d92a59e95fd33d7dc6c97aae47afe

Aliases

arxiv: 1108.5756 · arxiv_version: 1108.5756v1 · doi: 10.48550/arxiv.1108.5756 · pith_short_12: 4ERJXS7SQ7L5 · pith_short_16: 4ERJXS7SQ7L5LTOV · pith_short_8: 4ERJXS7S

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/4ERJXS7SQ7L5LTOVWE3EC242Y7 \
  | 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: e1229bcbf287d7d5cdd5b136416b9ac7ca4d92a59e95fd33d7dc6c97aae47afe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dca9a6fadbf8883c2bfb8146cf1b08a4b8d356dd11f58941b97a510bafed4c4c",
    "cross_cats_sorted": [
      "cs.SY",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2011-08-29T21:15:00Z",
    "title_canon_sha256": "737648e178abb2e759e4f3090abf4ea813d7a5c6aec5c618d14388ebe0f62833"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5756",
    "kind": "arxiv",
    "version": 1
  }
}