Pith Number

pith:ZHAOOYGE

pith:1998:ZHAOOYGET7SILZEYMYWPO24WVC

not attested not anchored not stored refs pending

Rotation curves of UMa galaxies in the context of modified Newtonian dynamics

Groningen, M.A.W. Verheijen (Kapteyn Astronomical Institute, NL), R.H. Sanders

arxiv:astro-ph/9802240 v2 · 1998-02-18 · 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{ZHAOOYGET7SILZEYMYWPO24WVC}

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	2026-07-04T16:06:10.796130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c9c0e760c49fe485e498662cf76b96a88f0f8df9144e3bc189586428547cf1fe

Aliases

arxiv: astro-ph/9802240 · arxiv_version: astro-ph/9802240v2 · doi: 10.48550/arxiv.astro-ph/9802240 · pith_short_12: ZHAOOYGET7SI · pith_short_16: ZHAOOYGET7SILZEY · pith_short_8: ZHAOOYGE

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/ZHAOOYGET7SILZEYMYWPO24WVC \
  | 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: c9c0e760c49fe485e498662cf76b96a88f0f8df9144e3bc189586428547cf1fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8d7dc595b710814506d0a075e4e2c9d206895b7801919ba02d6b28e4bc387017",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-02-18T14:38:04Z",
    "title_canon_sha256": "b255fdf7cf3196abd50d8f54d46facb51d64bf7fbbb09f88c3b6e2eb1aec138f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9802240",
    "kind": "arxiv",
    "version": 2
  }
}