Pith Number

pith:LZG7IWXX

pith:1995:LZG7IWXXXBBFIADSNOODXT34Y3

not attested not anchored not stored refs pending

Microlensing Induced Spectral Variability In Q2237+0305

G.F. Lewis, M.J.Irwin, P.C.Hewett

arxiv:astro-ph/9508058 v1 · 1995-08-12 · 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{LZG7IWXXXBBFIADSNOODXT34Y3}

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	2026-05-18T01:07:41.455306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e4df45af7b8425400726b9c3bcf7cc6fbe3a5be1a3eb4efce6174e785e2b006

Aliases

arxiv: astro-ph/9508058 · arxiv_version: astro-ph/9508058v1 · doi: 10.48550/arxiv.astro-ph/9508058 · pith_short_12: LZG7IWXXXBBF · pith_short_16: LZG7IWXXXBBFIADS · pith_short_8: LZG7IWXX

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/LZG7IWXXXBBFIADSNOODXT34Y3 \
  | 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: 5e4df45af7b8425400726b9c3bcf7cc6fbe3a5be1a3eb4efce6174e785e2b006

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c57451b22c40b1106d982c281fc6b2aec4d0997c0d38269f76132fe9c77f048e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-08-12T17:26:46Z",
    "title_canon_sha256": "cf70cbd78387529aed03f1db067a1a8e86de7f1a208e6e3c4387a56ce588e22f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9508058",
    "kind": "arxiv",
    "version": 1
  }
}