Pith Number

pith:X3OADZ4V

pith:1996:X3OADZ4VGXDN6BC3SGO6UFMQWJ

not attested not anchored not stored refs pending

HST Observations and Models of The Gravitational Lens System MG 0414+0534

Emilio E. Falco, Irwin I. Shapiro (CfA), Joseph Lehar

arxiv:astro-ph/9612182 v2 · 1996-12-18 · 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{X3OADZ4VGXDN6BC3SGO6UFMQWJ}

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	2026-05-18T01:07:40.382334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bedc01e79535c6df045b919dea1590b266708c21071bab9ae4eddf5f33a49043

Aliases

arxiv: astro-ph/9612182 · arxiv_version: astro-ph/9612182v2 · doi: 10.48550/arxiv.astro-ph/9612182 · pith_short_12: X3OADZ4VGXDN · pith_short_16: X3OADZ4VGXDN6BC3 · pith_short_8: X3OADZ4V

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/X3OADZ4VGXDN6BC3SGO6UFMQWJ \
  | 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: bedc01e79535c6df045b919dea1590b266708c21071bab9ae4eddf5f33a49043

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6c756321664ad3af6db31cc8c6db57ef66ca3bd513cb54ec8cf2cd182d780e1d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1996-12-18T16:18:19Z",
    "title_canon_sha256": "4687967a94b0236009d2bc5f0494555f1b8f1e5a5bcdd844ca30d3e1a8032261"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9612182",
    "kind": "arxiv",
    "version": 2
  }
}