Pith Number

pith:MM3DWO5D

pith:2019:MM3DWO5DODO6XJXLAST4ZIVB47

not attested not anchored not stored refs pending

Godbillon-Vey Helicity and Magnetic Helicity in Magnetohydrodynamics

A. Prasad, G. M. Webb, Q. Hu, S. C. Anco

arxiv:1909.07291 v1 · 2019-09-16 · astro-ph.SR · 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{MM3DWO5DODO6XJXLAST4ZIVB47}

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	2026-07-05T00:12:07.950591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

63363b3ba370ddeba6eb04a7cca2a1e7e3f161fcd4a5dbdaf8a21370d9ec7d57

Aliases

arxiv: 1909.07291 · arxiv_version: 1909.07291v1 · doi: 10.48550/arxiv.1909.07291 · pith_short_12: MM3DWO5DODO6 · pith_short_16: MM3DWO5DODO6XJXL · pith_short_8: MM3DWO5D

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/MM3DWO5DODO6XJXLAST4ZIVB47 \
  | 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: 63363b3ba370ddeba6eb04a7cca2a1e7e3f161fcd4a5dbdaf8a21370d9ec7d57

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51ee613758f8f61eb79ad991ff34ceb98325c9b4a71b8932f4c3954109084102",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-09-16T15:43:36Z",
    "title_canon_sha256": "9ae503735b36d798e02cff4d9e7119c2fdd613ae04ba2fa54462855b69c76a5d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.07291",
    "kind": "arxiv",
    "version": 1
  }
}