Pith Number

pith:HTTDBCRG

pith:1999:HTTDBCRGJSR4UD6UIBC3RQK5QC

not attested not anchored not stored refs pending

The rate of caustic crossing microlensing events for Q2237+0305

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

arxiv:astro-ph/9908120 v2 · 1999-08-10 · 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{HTTDBCRGJSR4UD6UIBC3RQK5QC}

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	2026-05-18T01:07:36.201496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ce6308a264ca3ca0fd44045b8c15d80bf1790858e8533496533a3691bb16a20

Aliases

arxiv: astro-ph/9908120 · arxiv_version: astro-ph/9908120v2 · doi: 10.48550/arxiv.astro-ph/9908120 · pith_short_12: HTTDBCRGJSR4 · pith_short_16: HTTDBCRGJSR4UD6U · pith_short_8: HTTDBCRG

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/HTTDBCRGJSR4UD6UIBC3RQK5QC \
  | 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: 3ce6308a264ca3ca0fd44045b8c15d80bf1790858e8533496533a3691bb16a20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8d741e887bd6157fc34734f2376e3f5094d191ea70b49d852528010a54e552f",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-08-10T23:07:09Z",
    "title_canon_sha256": "1d2a54b53d10c1ca23677edd0439b3213cdf8258ea940280b5d69f50a5731669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9908120",
    "kind": "arxiv",
    "version": 2
  }
}