Pith Number

pith:QN4LR5F5

pith:2017:QN4LR5F5UQVMOXMKRRXHPFOQRC

not attested not anchored not stored refs pending

Smooth travelling-wave solutions to the inviscid surface quasi-geostrophic equation

Didier Smets, Philippe Gravejat

arxiv:1705.06935 v1 · 2017-05-19 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QN4LR5F5UQVMOXMKRRXHPFOQRC}

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	2026-05-18T00:44:10.936984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8378b8f4bda42ac75d8a8c6e7795d08893595a68661bcc15cd2742b8729fca48

Aliases

arxiv: 1705.06935 · arxiv_version: 1705.06935v1 · doi: 10.48550/arxiv.1705.06935 · pith_short_12: QN4LR5F5UQVM · pith_short_16: QN4LR5F5UQVMOXMK · pith_short_8: QN4LR5F5

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/QN4LR5F5UQVMOXMKRRXHPFOQRC \
  | 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: 8378b8f4bda42ac75d8a8c6e7795d08893595a68661bcc15cd2742b8729fca48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b7cc4aa426d46d7dccbdad379881fb070eb680b086e8c20bebb8fa54195d1ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-05-19T11:15:17Z",
    "title_canon_sha256": "1c179b8f6ba4497004ab1c4962b96bc05b377dbf2c9c228cfea8aa742a52af2b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.06935",
    "kind": "arxiv",
    "version": 1
  }
}