Pith Number

pith:LCNQKY5M

pith:2016:LCNQKY5MNGBUAQBHQHAYZPQKND

not attested not anchored not stored refs pending

A Dual EnKF for Estimating Water Level, Bottom Roughness, and Bathymetry in a 1-D Hydrodynamic Model

Dingbao Wang, Milad Hooshyar, Scott C. Hagen, Stephen C. Medeiros

arxiv:1607.00569 v1 · 2016-07-02 · physics.ao-ph · physics.data-an · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LCNQKY5MNGBUAQBHQHAYZPQKND}

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	2026-05-18T01:11:36.763189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

589b0563ac698340402781c18cbe0a68e5f2c4ce70afecc0ce0ba8b781ccc289

Aliases

arxiv: 1607.00569 · arxiv_version: 1607.00569v1 · doi: 10.48550/arxiv.1607.00569 · pith_short_12: LCNQKY5MNGBU · pith_short_16: LCNQKY5MNGBUAQBH · pith_short_8: LCNQKY5M

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/LCNQKY5MNGBUAQBHQHAYZPQKND \
  | 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: 589b0563ac698340402781c18cbe0a68e5f2c4ce70afecc0ce0ba8b781ccc289

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ead7771501782a118a8486a454e29bdfe7f81f9cf6adfaa267003e30a4a2d38d",
    "cross_cats_sorted": [
      "physics.data-an",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ao-ph",
    "submitted_at": "2016-07-02T23:07:15Z",
    "title_canon_sha256": "b21c14248c5a0c71ab634786ebfd97e03d4ed38a6659b9bb795a759159ba2057"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.00569",
    "kind": "arxiv",
    "version": 1
  }
}