Pith Number

pith:43AYEFKF

pith:2015:43AYEFKF4XXAYKDKSFI7HMOO4P

not attested not anchored not stored refs pending

Resolving the Innermost Region of the Accretion Disk of the Lensed Quasar Q 2237+0305 through Gravitational Microlensing

E. Mediavilla, J. A. Munoz, J. Jimenez-Vicente, T. Mediavilla

arxiv:1511.04896 v1 · 2015-11-16 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{43AYEFKF4XXAYKDKSFI7HMOO4P}

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	2026-05-18T01:25:33.278873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6c1821545e5ee0c286a9151f3b1cee3e957920b3542b509871b24d0531091ed

Aliases

arxiv: 1511.04896 · arxiv_version: 1511.04896v1 · doi: 10.48550/arxiv.1511.04896 · pith_short_12: 43AYEFKF4XXA · pith_short_16: 43AYEFKF4XXAYKDK · pith_short_8: 43AYEFKF

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/43AYEFKF4XXAYKDKSFI7HMOO4P \
  | 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: e6c1821545e5ee0c286a9151f3b1cee3e957920b3542b509871b24d0531091ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a519df3f07dd997c19f552ea67a398ac340970642a01c709ed4ad3c0b22248a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-11-16T10:22:00Z",
    "title_canon_sha256": "76c7a4447670e91f3ccc15bbe1b7f6688c7e9fd896679315baf047c8a642e588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04896",
    "kind": "arxiv",
    "version": 1
  }
}