Pith Number

pith:75A5QS7T

pith:1995:75A5QS7TCYDBVUOFYG3BI5XM3C

not attested not anchored not stored refs pending

Numerical Magnetohydrodynamics in Astrophysics: Algorithm and Tests for Multi-Dimensional Flow

Adam Frank, Dongsu Ryu, T. W. Jones

arxiv:astro-ph/9505073 v1 · 1995-05-17 · astro-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{75A5QS7TCYDBVUOFYG3BI5XM3C}

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	2026-05-18T01:07:41.624561Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff41d84bf316061ad1c5c1b61476ecd89b5998eabcc9ea14e8a71422793e8b3c

Aliases

arxiv: astro-ph/9505073 · arxiv_version: astro-ph/9505073v1 · doi: 10.48550/arxiv.astro-ph/9505073 · pith_short_12: 75A5QS7TCYDB · pith_short_16: 75A5QS7TCYDBVUOF · pith_short_8: 75A5QS7T

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/75A5QS7TCYDBVUOFYG3BI5XM3C \
  | 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: ff41d84bf316061ad1c5c1b61476ecd89b5998eabcc9ea14e8a71422793e8b3c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42257c26b0eace0891030545f86e0cafa9e933d184667335341203c32bbb21cc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-05-17T19:25:10Z",
    "title_canon_sha256": "73f7ed1ccd2891ea55c7ece650c0b85f8aacd18856c40beda01e83bf292de789"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9505073",
    "kind": "arxiv",
    "version": 1
  }
}