Pith Number

pith:QPJN23BA

pith:2001:QPJN23BA2UUEBJ2I6YJKO73SJL

not attested not anchored not stored refs pending

Gradient Particle Magnetohydrodynamics

Gregory G. Howes, Jason L. Maron

arxiv:astro-ph/0107454 v1 · 2001-07-24 · 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{QPJN23BA2UUEBJ2I6YJKO73SJL}

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	2026-07-04T16:23:45.282139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83d2dd6c20d52840a748f612a77f724ae78aecb52e077001b9ea11d2ede2b0a4

Aliases

arxiv: astro-ph/0107454 · arxiv_version: astro-ph/0107454v1 · doi: 10.48550/arxiv.astro-ph/0107454 · pith_short_12: QPJN23BA2UUE · pith_short_16: QPJN23BA2UUEBJ2I · pith_short_8: QPJN23BA

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/QPJN23BA2UUEBJ2I6YJKO73SJL \
  | 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: 83d2dd6c20d52840a748f612a77f724ae78aecb52e077001b9ea11d2ede2b0a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9040e24d6de95353742b768b943222a46222ac933e039a2ac07b33b46690dff9",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-07-24T06:25:50Z",
    "title_canon_sha256": "fc50e6ae9b382c9ce61d0240ed83869c76a7902922073c3aa08a41fc6962a5e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0107454",
    "kind": "arxiv",
    "version": 1
  }
}