Pith Number

pith:D5QHLSWM

pith:1998:D5QHLSWMALAJYLRUHRE4UH6L4F

not attested not anchored not stored refs pending

Nuclear-to-Disk Rotation Curves of Galaxies in the H_alpha and [NII] Emission Lines

Akihiko Tomita, Mareki Honma, Yoichi Takeda, Yoshiaki SOFUE, Yoshinori Tutui

arxiv:astro-ph/9807340 v1 · 1998-07-31 · 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{D5QHLSWMALAJYLRUHRE4UH6L4F}

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	2026-05-18T00:53:28.186900Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f6075cacc02c09c2e343c49ca1fcbe17be225916c6e8a54ec06e53ed54cbe82

Aliases

arxiv: astro-ph/9807340 · arxiv_version: astro-ph/9807340v1 · doi: 10.48550/arxiv.astro-ph/9807340 · pith_short_12: D5QHLSWMALAJ · pith_short_16: D5QHLSWMALAJYLRU · pith_short_8: D5QHLSWM

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/D5QHLSWMALAJYLRUHRE4UH6L4F \
  | 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: 1f6075cacc02c09c2e343c49ca1fcbe17be225916c6e8a54ec06e53ed54cbe82

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d0e1ff63edb6e69e354c19796a1aee8fcf3e2c126c0099f31b4bac984e3989b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-07-31T15:49:41Z",
    "title_canon_sha256": "56b2842360e915b61a124a52fe700f10e4984c3f3cebc55c8b1ec158d96cb1a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9807340",
    "kind": "arxiv",
    "version": 1
  }
}