Pith Number

pith:QALFAYTK

pith:2019:QALFAYTKKKKAYKZ2ALY5XSUPJU

not attested not anchored not stored refs pending

Justification of the Point Vortex Approximation for Modified Surface Quasi-Geostrophic Equations

Matthew Rosenzweig

arxiv:1905.07351 v1 · 2019-05-17 · math.AP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QALFAYTKKKKAYKZ2ALY5XSUPJU}

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	2026-05-17T23:45:55.832155Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

801650626a52940c2b3a02f1dbca8f4d170edccaaceb8cef50761c897d87f9d8

Aliases

arxiv: 1905.07351 · arxiv_version: 1905.07351v1 · doi: 10.48550/arxiv.1905.07351 · pith_short_12: QALFAYTKKKKA · pith_short_16: QALFAYTKKKKAYKZ2 · pith_short_8: QALFAYTK

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/QALFAYTKKKKAYKZ2ALY5XSUPJU \
  | 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: 801650626a52940c2b3a02f1dbca8f4d170edccaaceb8cef50761c897d87f9d8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31ab5c3bab1b1913d0022fa3c49ad8d8d6a7ce9ed475cd30f26996e0a0985e3a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-05-17T16:16:20Z",
    "title_canon_sha256": "d66a06c6aa201823efe51eebd0d3365709c8d9a06d67a00f07a6a088e2546f25"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.07351",
    "kind": "arxiv",
    "version": 1
  }
}