Pith Number

pith:S6XMLG5P

pith:1999:S6XMLG5PTM5ABXA73G4KTVRX3H

not attested not anchored not stored refs pending

A gravitational microlensing determination of continuum source size in Q2237+0305

D. J. Mortlock, E. L. Turner, J. S. B. Wyithe, R. L. Webster

arxiv:astro-ph/9904361 v3 · 1999-04-26 · 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{S6XMLG5PTM5ABXA73G4KTVRX3H}

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	2026-07-04T16:10:55.708162Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97aec59baf9b3a00dc1fd9b8a9d637d9c24c3817e42ec8eaa1dfd27790a18b07

Aliases

arxiv: astro-ph/9904361 · arxiv_version: astro-ph/9904361v3 · doi: 10.48550/arxiv.astro-ph/9904361 · pith_short_12: S6XMLG5PTM5A · pith_short_16: S6XMLG5PTM5ABXA7 · pith_short_8: S6XMLG5P

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/S6XMLG5PTM5ABXA73G4KTVRX3H \
  | 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: 97aec59baf9b3a00dc1fd9b8a9d637d9c24c3817e42ec8eaa1dfd27790a18b07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a5d52806609e283f15485b2b21ea8403f4f61cd65ccefbe4c41656323d20444",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-04-26T15:46:57Z",
    "title_canon_sha256": "0e6e41d3b7e77081709acae95fa0663ad7e821e775ab06143901f62299135090"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9904361",
    "kind": "arxiv",
    "version": 3
  }
}