Pith Number

pith:5UAAWSIQ

pith:2003:5UAAWSIQQGDKOJNLFXQX6DKIQP

not attested not anchored not stored refs pending

A Catalog of Compact Groups of Galaxies in the SDSS Commissioning Data

A. S. Szalay, B. C. Lee, B. Yanny, C. Stoughton, D. E. Johnston, D. L. Tucker, D. P. Schneider, E. K. Grebel, F. Prada, H. Boehringer, J. Annis, J. Loveday, L. Infante, M. Bartelmann, M. R. Blanton, M. S. Vogeley, N. A. Bahcall, N. Ellman, R. Scranton, S. S. Allam, T. A. McKay, W. Voges, Y. Acebo

arxiv:astro-ph/0312553 v1 · 2003-12-20 · 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{5UAAWSIQQGDKOJNLFXQX6DKIQP}

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	2026-07-04T16:38:03.074730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed000b49108186a725ab2de17f0d4883ce4fe2ba77ecc9eca8bedbeb7dc8b434

Aliases

arxiv: astro-ph/0312553 · arxiv_version: astro-ph/0312553v1 · doi: 10.48550/arxiv.astro-ph/0312553 · pith_short_12: 5UAAWSIQQGDK · pith_short_16: 5UAAWSIQQGDKOJNL · pith_short_8: 5UAAWSIQ

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/5UAAWSIQQGDKOJNLFXQX6DKIQP \
  | 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: ed000b49108186a725ab2de17f0d4883ce4fe2ba77ecc9eca8bedbeb7dc8b434

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da1de5068ac9b7b5ac7c133813ca8d1dbf4ba972a766ad761813e772bedece0c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-20T01:37:33Z",
    "title_canon_sha256": "d837ab34b861c2f715e933e6284491902387bf252c12eefdf2382edcff7e9f19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312553",
    "kind": "arxiv",
    "version": 1
  }
}