Pith Number

pith:3NSBVQ53

pith:2009:3NSBVQ53KMOESZKXEEUGBLUPOA

not attested not anchored not stored refs pending

The faint outer regions of the Pegasus Dwarf Irregular galaxy: a much larger and undisturbed galaxy

2), 7, 8), Alexei Kniazev (1, Australia; (8) Anglo-Australian Observatory, Australia; (9) SAO RAS, Daniel B. Zucker (6, Eva K. Grebel (5), Germany; (6) Institute of Astronomy, G. Lyle Hoffman (4), Israel; (4) Lafayette College, Noah Brosch (3), Russia), Simon A. Pustilnik (9) ((1) SAAO, South Africa; (2) SALT Foundation, South Africa; (3) The Wise Observatory, UK; (7) Macquarie University, USA; (5) University of Heidelberg

arxiv:0908.3621 v1 · 2009-08-25 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3NSBVQ53KMOESZKXEEUGBLUPOA}

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	2026-05-18T02:12:23.156033Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db641ac3bb531c496557212860ae8f703c83ae7bf7c7461ba9a2b6f93c9cea92

Aliases

arxiv: 0908.3621 · arxiv_version: 0908.3621v1 · doi: 10.48550/arxiv.0908.3621 · pith_short_12: 3NSBVQ53KMOE · pith_short_16: 3NSBVQ53KMOESZKX · pith_short_8: 3NSBVQ53

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/3NSBVQ53KMOESZKXEEUGBLUPOA \
  | 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: db641ac3bb531c496557212860ae8f703c83ae7bf7c7461ba9a2b6f93c9cea92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdddd5e54e6a9e71cf07bf6947681b9ad7e8c4e891fc0eb8dbcfcdacaf5af030",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-08-25T13:58:02Z",
    "title_canon_sha256": "ec5aef81872bcdd7eba2ede3533cf06f005235c17797f7ef30e6fe53eaae4e08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3621",
    "kind": "arxiv",
    "version": 1
  }
}