Pith Number

pith:4GSH2GFQ

pith:2022:4GSH2GFQTW2KTSQFYDM5TZS33F

not attested not anchored not stored refs pending

Bathymetry Inversion using a Deep-Learning-Based Surrogate for Shallow Water Equations Solvers

Chaopeng Shen, Xiaofeng Liu, Yalan Song

arxiv:2203.02821 v1 · 2022-03-05 · physics.flu-dyn · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4GSH2GFQTW2KTSQFYDM5TZS33F}

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	2026-07-05T04:02:27.945893Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1a47d18b09db4a9ca05c0d9d9e65bd966c369992734911c3b4bfe56960c0b8f

Aliases

arxiv: 2203.02821 · arxiv_version: 2203.02821v1 · doi: 10.48550/arxiv.2203.02821 · pith_short_12: 4GSH2GFQTW2K · pith_short_16: 4GSH2GFQTW2KTSQF · pith_short_8: 4GSH2GFQ

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/4GSH2GFQTW2KTSQFYDM5TZS33F \
  | 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: e1a47d18b09db4a9ca05c0d9d9e65bd966c369992734911c3b4bfe56960c0b8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57f3f1f845a9e6cd28ef86490315fd9167ee7388451112c28577cb4a7138b56e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2022-03-05T21:49:24Z",
    "title_canon_sha256": "1d4827a20d78d3af24b8ac804e98d46ee453e7b5aa1590382f6e91b20ab98f39"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.02821",
    "kind": "arxiv",
    "version": 1
  }
}