Pith Number

pith:4G7NOPRB

pith:2011:4G7NOPRBXLTITGJ4UBIAHWJBJ4

not attested not anchored not stored refs pending

Ensemble regional data assimilation using joint states

Brian R. Hunt, Edward Ott, Istvan Szunyogh, Young-noh Yoon

arxiv:1108.0983 v1 · 2011-08-04 · nlin.CD · physics.ao-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4G7NOPRBXLTITGJ4UBIAHWJBJ4}

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	2026-05-18T04:15:06.925105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1bed73e21bae689993ca05003d9214f34003d13aed7a39a7776739a777bfa3e

Aliases

arxiv: 1108.0983 · arxiv_version: 1108.0983v1 · doi: 10.48550/arxiv.1108.0983 · pith_short_12: 4G7NOPRBXLTI · pith_short_16: 4G7NOPRBXLTITGJ4 · pith_short_8: 4G7NOPRB

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/4G7NOPRBXLTITGJ4UBIAHWJBJ4 \
  | 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: e1bed73e21bae689993ca05003d9214f34003d13aed7a39a7776739a777bfa3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c020c0f3c3ae27930a9f7b71530d644e700a644725c1b6cff8944d45ac087ec",
    "cross_cats_sorted": [
      "physics.ao-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.CD",
    "submitted_at": "2011-08-04T02:30:14Z",
    "title_canon_sha256": "934175a757fac36bc14a082dc871c7479d1b78b4a8b8360c5d275e46b2d739ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0983",
    "kind": "arxiv",
    "version": 1
  }
}