Pith Number

pith:2NQWMQUQ

pith:2011:2NQWMQUQQNUA5B4XEOKWLELNZS

not attested not anchored not stored refs pending

On the propagation of information and the use of localization in ensemble Kalman filtering

Edward Ott, Istvan Szunyogh, Young-noh Yoon

arxiv:1108.0974 v1 · 2011-08-04 · nlin.CD

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2NQWMQUQQNUA5B4XEOKWLELNZS}

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	2026-05-18T02:01:03.179042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d36166429083680e8797239565916dccbdaeb6eff2a2fcc7c6fd8b9cea5f05cb

Aliases

arxiv: 1108.0974 · arxiv_version: 1108.0974v1 · doi: 10.48550/arxiv.1108.0974 · pith_short_12: 2NQWMQUQQNUA · pith_short_16: 2NQWMQUQQNUA5B4X · pith_short_8: 2NQWMQUQ

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/2NQWMQUQQNUA5B4XEOKWLELNZS \
  | 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: d36166429083680e8797239565916dccbdaeb6eff2a2fcc7c6fd8b9cea5f05cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4eb5633d290e4a8e526ba560904629b32187037f8d8c00452d304ced6f315c64",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2011-08-04T01:30:18Z",
    "title_canon_sha256": "6c26429843218f3cb64b944b0eb66ac612aae14539b3bfd7c72e36332a90bb1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0974",
    "kind": "arxiv",
    "version": 1
  }
}