Pith Number

pith:LSCJTUWP

pith:1999:LSCJTUWPGSAL7TOJSCXDM5U4EM

not attested not anchored not stored refs pending

A ring galaxy at z=1 lensed by the cluster Abell 370

2), (2) Kapteyn Institute, (3) ISO Data Centre, B. Altieri (3), ESA, France, Groningen, G. Soucail (1), J. Bezecourt (1, J.F. Le Borgne (1) ((1) Observatoire Midi-Pyrenees, J.P. Kneib (1), L. Metcalfe (3), Madrid, Spain), The Netherlands, Toulouse

arxiv:astro-ph/9901123 v2 · 1999-01-11 · 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{LSCJTUWPGSAL7TOJSCXDM5U4EM}

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	2026-07-04T15:51:14.338918Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c8499d2cf3480bfcdc990ae36769c231ea5bfa072eb47a537512f6752149130

Aliases

arxiv: astro-ph/9901123 · arxiv_version: astro-ph/9901123v2 · doi: 10.48550/arxiv.astro-ph/9901123 · pith_short_12: LSCJTUWPGSAL · pith_short_16: LSCJTUWPGSAL7TOJ · pith_short_8: LSCJTUWP

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/LSCJTUWPGSAL7TOJSCXDM5U4EM \
  | 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: 5c8499d2cf3480bfcdc990ae36769c231ea5bfa072eb47a537512f6752149130

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca48da3cb43f0811bf2e8e84fedb126d15cca2e3bfe5f9ab5b29dc99445699a2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-01-11T16:13:31Z",
    "title_canon_sha256": "f4cb87d2a7edc5c8fcb310ced1331912fa43b5f15d2a3d7724962b801de5dfaf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9901123",
    "kind": "arxiv",
    "version": 2
  }
}