Pith Number

pith:ZXLQPQSF

pith:2009:ZXLQPQSFREQFSMJ6CYKTA7ZRZF

not attested not anchored not stored refs pending

Recovering isolated galaxies from large scale surveys: problems and strategies

2, (2) European Southern Observatory, (3) University of Granada, 4, (4) LERMA-OBSPM, 5), 5) ((1) Instituto de Astrofisica de Andalucia-CSIC, (5) AMIGA Collaboration), Juan de Dios Santander-Vela (1, Lourdes Verdes-Montenegro (1, Simon Verley (3

arxiv:0910.0661 v1 · 2009-10-05 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZXLQPQSFREQFSMJ6CYKTA7ZRZF}

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	2026-05-18T03:53:55.065268Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cdd707c245892059313e1615307f31c97407968ec319c091b475cb4a94ed349d

Aliases

arxiv: 0910.0661 · arxiv_version: 0910.0661v1 · doi: 10.48550/arxiv.0910.0661 · pith_short_12: ZXLQPQSFREQF · pith_short_16: ZXLQPQSFREQFSMJ6 · pith_short_8: ZXLQPQSF

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/ZXLQPQSFREQFSMJ6CYKTA7ZRZF \
  | 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: cdd707c245892059313e1615307f31c97407968ec319c091b475cb4a94ed349d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b0da02d10e7acaf816fe9a8b74f3ec7ba0d06a88860e9a1ef4e35079ace780f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2009-10-05T02:35:06Z",
    "title_canon_sha256": "33e19f3282a1d373612a3dd3debdd1ace07e09238429450413efe43ab1662a40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.0661",
    "kind": "arxiv",
    "version": 1
  }
}