Pith Number

pith:QHAN3DP2

pith:2011:QHAN3DP2D6GOMNAEQ4OVPEH3FJ

not attested not anchored not stored refs pending

Standard and helical magnetorotational instability: How singularities create paradoxal phenomena in MHD

Frank Stefani, Oleg N. Kirillov

arxiv:1109.1940 v1 · 2011-09-09 · astro-ph.SR · math-ph · math.MP · nlin.PS · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QHAN3DP2D6GOMNAEQ4OVPEH3FJ}

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	2026-05-18T03:51:14.380927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81c0dd8dfa1f8ce63404871d5790fb2a419cb971c77ad08e6532ba685143bc53

Aliases

arxiv: 1109.1940 · arxiv_version: 1109.1940v1 · doi: 10.48550/arxiv.1109.1940 · pith_short_12: QHAN3DP2D6GO · pith_short_16: QHAN3DP2D6GOMNAE · pith_short_8: QHAN3DP2

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/QHAN3DP2D6GOMNAEQ4OVPEH3FJ \
  | 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: 81c0dd8dfa1f8ce63404871d5790fb2a419cb971c77ad08e6532ba685143bc53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80c5d2d011ff9404fd9f0fae02828970d3eded2845490bf209f3061fb6de9f20",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "nlin.PS",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-09T08:35:26Z",
    "title_canon_sha256": "68c59b4a238efc5267ba49805ac0112fd526042ba9efccb64565a289457a54b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.1940",
    "kind": "arxiv",
    "version": 1
  }
}