Pith Number

pith:MXF6AGR5

pith:1995:MXF6AGR5BEAUSWLPUZ6KIOCCE3

not attested not anchored not stored refs pending

The Mass Distribution of the Lens Galaxy in MG1131+0456

C. S. Kochanek (Harvard-Smithsonian Center for Astrophysics, Department of Astronomy), G. H. Chen (Massachusetts Institute of Technology), J. N. Hewitt (Massachusetts Institute of Technology)

arxiv:astro-ph/9501031 v1 · 1995-01-10 · 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{MXF6AGR5BEAUSWLPUZ6KIOCCE3}

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	2026-05-18T01:07:42.766594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65cbe01a3d090149596fa67ca4384226fa56400941f12391380c09a1398aec07

Aliases

arxiv: astro-ph/9501031 · arxiv_version: astro-ph/9501031v1 · doi: 10.48550/arxiv.astro-ph/9501031 · pith_short_12: MXF6AGR5BEAU · pith_short_16: MXF6AGR5BEAUSWLP · pith_short_8: MXF6AGR5

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/MXF6AGR5BEAUSWLPUZ6KIOCCE3 \
  | 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: 65cbe01a3d090149596fa67ca4384226fa56400941f12391380c09a1398aec07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f66e6887da589029936c6ec4b7c9de5c0a75966eea6ce347bab79a4432d550c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-01-10T15:00:56Z",
    "title_canon_sha256": "ab171b1e1201b5c39adc60c304f375d96af971fe1696652ccfb38a3b7d305acf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9501031",
    "kind": "arxiv",
    "version": 1
  }
}