Pith Number

pith:SFPZTQPS

pith:2015:SFPZTQPSAANZR6NIB2DB73REU3

not attested not anchored not stored refs pending

A Stabilised Nodal Spectral Element Method for Fully Nonlinear Water Waves

Allan Peter Engsig-Karup, Claes Eskilsson, Daniele Bigoni

arxiv:1512.02548 v2 · 2015-12-08 · physics.comp-ph · cs.CE · 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{SFPZTQPSAANZR6NIB2DB73REU3}

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	2026-05-18T01:12:12.721653Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

915f99c1f2001b98f9a80e861fee24a6f830b032255771751a1861842a48b73f

Aliases

arxiv: 1512.02548 · arxiv_version: 1512.02548v2 · doi: 10.48550/arxiv.1512.02548 · pith_short_12: SFPZTQPSAANZ · pith_short_16: SFPZTQPSAANZR6NI · pith_short_8: SFPZTQPS

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/SFPZTQPSAANZR6NIB2DB73REU3 \
  | 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: 915f99c1f2001b98f9a80e861fee24a6f830b032255771751a1861842a48b73f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bb523c7011190e407421c7678d14b86c88d0cca8e3a4afcc28adbaf8da36973",
    "cross_cats_sorted": [
      "cs.CE",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2015-12-08T17:12:14Z",
    "title_canon_sha256": "f81cbd89900c57d44fc556f00f512b97a87bae7bce7145de27d08b25426fcc28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02548",
    "kind": "arxiv",
    "version": 2
  }
}