Pith Number

pith:TI3VVNHH

pith:2000:TI3VVNHH5EPAP76AOUQ4KU2L2Z

not attested not anchored not stored refs pending

Dark Halo and Disk Galaxy Scaling Laws in Hierarchical Universes

Julio F. Navarro (University of Victoria), Matthias Steinmetz (University of Arizona)

arxiv:astro-ph/0001003 v2 · 2000-01-02 · 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{TI3VVNHH5EPAP76AOUQ4KU2L2Z}

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	2026-05-18T03:54:27.944959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9a375ab4e7e91e07ffc07521c5534bd643fb5e3de73c015ab2113c82bd6f01a4

Aliases

arxiv: astro-ph/0001003 · arxiv_version: astro-ph/0001003v2 · doi: 10.48550/arxiv.astro-ph/0001003 · pith_short_12: TI3VVNHH5EPA · pith_short_16: TI3VVNHH5EPAP76A · pith_short_8: TI3VVNHH

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/TI3VVNHH5EPAP76AOUQ4KU2L2Z \
  | 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: 9a375ab4e7e91e07ffc07521c5534bd643fb5e3de73c015ab2113c82bd6f01a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc258200ec30741a12272daa3ecae62e0dc270b079e1a68c3724c04f085669b4",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-01-02T01:09:29Z",
    "title_canon_sha256": "71ba8f7a30f7b9c9c7bd6e2ad61cd0f2cf8889eb982761bd3e88c948d85dc9cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0001003",
    "kind": "arxiv",
    "version": 2
  }
}