Pith Number

pith:VBM47UDF

pith:2016:VBM47UDFA3TACA3ECFMKPAYYP4

not attested not anchored not stored refs pending

Revisiting a classic: the Parker-Moffatt problem

C.L. Vasconez, F. Malara, F. Valentini, O. Pezzi, P. Veltri, S. Servidio, T.N. Parashar, W.H. Matthaeus, Y. Yang

arxiv:1611.08111 v1 · 2016-11-24 · physics.space-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VBM47UDFA3TACA3ECFMKPAYYP4}

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	2026-05-18T00:52:37.677621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a859cfd06506e60103641158a783187f3e20f8ec09f9c354aba3405210e9bb52

Aliases

arxiv: 1611.08111 · arxiv_version: 1611.08111v1 · doi: 10.48550/arxiv.1611.08111 · pith_short_12: VBM47UDFA3TA · pith_short_16: VBM47UDFA3TACA3E · pith_short_8: VBM47UDF

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/VBM47UDFA3TACA3ECFMKPAYYP4 \
  | 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: a859cfd06506e60103641158a783187f3e20f8ec09f9c354aba3405210e9bb52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba1728709486ad16bb65e3563884a567496330af59dc13583b5a568b7aed608e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.space-ph",
    "submitted_at": "2016-11-24T09:27:08Z",
    "title_canon_sha256": "e5809cfd71ec5213da4395673f12a7cf4232bd86c2b18b25784ca93c7c820c3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.08111",
    "kind": "arxiv",
    "version": 1
  }
}