Pith Number

pith:VLHE33EY

pith:2007:VLHE33EYW2YQBBXUM3QVWSGJFF

not attested not anchored not stored refs pending

The Universal Rotation Curve of Spiral Galaxies. II The Dark Matter Distribution out to the Virial Radius

A. Lapi, C. Tonini, G. Gentile, I. Yegorova, P. Salucci, U. Klein

arxiv:astro-ph/0703115 v2 · 2007-03-06 · 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{VLHE33EYW2YQBBXUM3QVWSGJFF}

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	2026-07-04T15:21:55.291248Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aace4dec98b6b10086f466e15b48c9297b0e51496fec2b3ccb5b7eff2358ce74

Aliases

arxiv: astro-ph/0703115 · arxiv_version: astro-ph/0703115v2 · doi: 10.48550/arxiv.astro-ph/0703115 · pith_short_12: VLHE33EYW2YQ · pith_short_16: VLHE33EYW2YQBBXU · pith_short_8: VLHE33EY

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/VLHE33EYW2YQBBXUM3QVWSGJFF \
  | 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: aace4dec98b6b10086f466e15b48c9297b0e51496fec2b3ccb5b7eff2358ce74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e0bc9efe857d71f33249dd358462f41371d5f9bc21a629d496049930d5927609",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-06T14:25:48Z",
    "title_canon_sha256": "581988a5c0bf91a2797d25fa8de09773b78fb97452ada62544d8108d95668728"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703115",
    "kind": "arxiv",
    "version": 2
  }
}