Pith Number

pith:WGKM74TW

pith:2018:WGKM74TWXLSR3TXY6GY65ZMCJE

not attested not anchored not stored refs pending

The `Cosmic Seagull': a highly magnified disk-like galaxy at z~2.8 behind the Bullet Cluster

Chile, Chile), China, China-Chile Joint Center for Astronomy, C. Horellou (Chalmers University of Technology, D. Gunawan (Universidad de Valparaiso, E. Ibar (Universidad de Valparaiso, J.H. Black (Chalmers University of Technology, J. Magana (Universidad de Valparaiso, J. Molina (Universidad de Chile, M. Birkinshaw (University of Bristol, Mexico), O. Lopez-Cruz (Instituto Nacional de Astrofisica, Optica y Electronica, Sweden), Technology of China, T.M. Hughes (Universidad de Valparaiso, T. Verdugo (Universidad Nacional Autonoma de Mexico, United Kingdom), University of Science, V. Motta (Universidad de Valparaiso

arxiv:1808.02828 v1 · 2018-08-08 · 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{WGKM74TWXLSR3TXY6GY65ZMCJE}

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	2026-05-18T00:07:33.680767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b194cff276bae51dcef8f1b1eee5824934f4827cea841537aa390e8f9c52433f

Aliases

arxiv: 1808.02828 · arxiv_version: 1808.02828v1 · doi: 10.48550/arxiv.1808.02828 · pith_short_12: WGKM74TWXLSR · pith_short_16: WGKM74TWXLSR3TXY · pith_short_8: WGKM74TW

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/WGKM74TWXLSR3TXY6GY65ZMCJE \
  | 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: b194cff276bae51dcef8f1b1eee5824934f4827cea841537aa390e8f9c52433f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f80f5f084c420a552f90129dbdca3e4bd991c1f45b5c9c2f87ad7a1301411a03",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-08T15:37:34Z",
    "title_canon_sha256": "1c1f151c8377321ff343912dcf897788fd06220f448f50d0b80bc18e407d81be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.02828",
    "kind": "arxiv",
    "version": 1
  }
}