Pith Number

pith:7BIWB3JB

pith:2011:7BIWB3JBSAL4XYIADPBM4MH25W

not attested not anchored not stored refs pending

Gravitational Microlensing as a probe of the Electron Scattering Region in Q2237+0305

D. J. Kedziora, G. F. Lewis, H. Garsden

arxiv:1103.4883 v1 · 2011-03-24 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7BIWB3JBSAL4XYIADPBM4MH25W}

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	2026-05-18T02:02:45.231719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f85160ed219017cbe1001bc2ce30faedbd35b446237faf862d8bd4d98a047741

Aliases

arxiv: 1103.4883 · arxiv_version: 1103.4883v1 · doi: 10.48550/arxiv.1103.4883 · pith_short_12: 7BIWB3JBSAL4 · pith_short_16: 7BIWB3JBSAL4XYIA · pith_short_8: 7BIWB3JB

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/7BIWB3JBSAL4XYIADPBM4MH25W \
  | 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: f85160ed219017cbe1001bc2ce30faedbd35b446237faf862d8bd4d98a047741

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "421dba2eacf431c19de4e80a65c185e05487a52f369f4f8acdd0b6b6c147438e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-03-24T23:56:38Z",
    "title_canon_sha256": "129bde534dda636ba55841e5edd521c8b1fb35e4bce8244c9c1ae7649b97eeb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.4883",
    "kind": "arxiv",
    "version": 1
  }
}