Pith Number

pith:UYXDIYXX

pith:2026:UYXDIYXXA2TTPJQK6SY6DKLEBW

not attested not anchored not stored refs pending

Two-Dimensional Locally Adaptive Non-Hydrostatic Extension of Shallow Water Equations

J\"orn Behrens, Kemal Firdaus

arxiv:2606.27562 v1 · 2026-06-25 · physics.flu-dyn · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UYXDIYXXA2TTPJQK6SY6DKLEBW}

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	2026-06-29T00:14:10.073001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a62e3462f706a737a60af4b1e1a9640d92076bc6feced52e2b4f3f307235d0a2

Aliases

arxiv: 2606.27562 · arxiv_version: 2606.27562v1 · doi: 10.48550/arxiv.2606.27562 · pith_short_12: UYXDIYXXA2TT · pith_short_16: UYXDIYXXA2TTPJQK · pith_short_8: UYXDIYXX

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/UYXDIYXXA2TTPJQK6SY6DKLEBW \
  | 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: a62e3462f706a737a60af4b1e1a9640d92076bc6feced52e2b4f3f307235d0a2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57cff5e79144bba09ad23597b88bbb77be12976fc8e1822533ac15a1b4b9ecc9",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2026-06-25T21:34:45Z",
    "title_canon_sha256": "c6dbad2992998bfdd4d90ad2afa6c7f1346caf88470a1cdd5bb7ea99247593c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27562",
    "kind": "arxiv",
    "version": 1
  }
}