Pith Number

pith:2X5X3I2V

pith:2001:2X5X3I2VXEFEE5WD72CM3MWC4F

not attested not anchored not stored refs pending

Comparison between Disk-like Objects Formed in Hierarchical Hydrodynamical Simulations and Observations of Spiral Galaxies

(2) Instituto de Astronomia y Fisica del Espacio, (3) University of British Columbia, Argentina, A. Saiz (1), Buenos Aires, Canada), Madrid, P. B. Tissera (2), R. Dominguez-Tenreiro (1), S. Courteau (3) ((1) Universidad Autonoma de Madrid, Spain, Vancouver

arxiv:astro-ph/0101490 v1 · 2001-01-26 · 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{2X5X3I2VXEFEE5WD72CM3MWC4F}

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	2026-07-04T14:11:02.221735Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5fb7da355b90a4276c3fe84cdb2c2e161a2ceb5a34b23b4b412dc5480414a3e

Aliases

arxiv: astro-ph/0101490 · arxiv_version: astro-ph/0101490v1 · doi: 10.48550/arxiv.astro-ph/0101490 · pith_short_12: 2X5X3I2VXEFE · pith_short_16: 2X5X3I2VXEFEE5WD · pith_short_8: 2X5X3I2V

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/2X5X3I2VXEFEE5WD72CM3MWC4F \
  | 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: d5fb7da355b90a4276c3fe84cdb2c2e161a2ceb5a34b23b4b412dc5480414a3e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ba357877e766934d9405a52a9b2e5cd084e26d8d4f2796f4e75f0ad41241f778",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-01-26T22:50:44Z",
    "title_canon_sha256": "fae32d769e8206f59dd02d319baca306712f20ee8ec9cb62f4126371aacbf6d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0101490",
    "kind": "arxiv",
    "version": 1
  }
}