Pith Number

pith:DIX2GT7B

pith:2019:DIX2GT7BVIBHKR2U7DEPPWOOWQ

not attested not anchored not stored refs pending

A Microlensing Accretion Disk Size Measurement in the Lensed Quasar WFI 2026-4536

Christopher W. Morgan, Emilio E. Falco, Frederic Courbin, Martin Millon, Matthew A. Cornachione, Misty C. Bentz, Vivien Bonvin

arxiv:1911.06218 v2 · 2019-11-14 · astro-ph.HE · 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{DIX2GT7BVIBHKR2U7DEPPWOOWQ}

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	2026-07-05T01:08:50.431780Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a2fa34fe1aa02754754f8c8f7d9ceb42e66e09da50736a7ed9bcd26e8994e2a

Aliases

arxiv: 1911.06218 · arxiv_version: 1911.06218v2 · doi: 10.48550/arxiv.1911.06218 · pith_short_12: DIX2GT7BVIBH · pith_short_16: DIX2GT7BVIBHKR2U · pith_short_8: DIX2GT7B

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/DIX2GT7BVIBHKR2U7DEPPWOOWQ \
  | 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: 1a2fa34fe1aa02754754f8c8f7d9ceb42e66e09da50736a7ed9bcd26e8994e2a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df9e9660e7a513e876698f2c4b97c4c989a8951a94d30ee72de07d25f85dac9b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-11-14T16:19:16Z",
    "title_canon_sha256": "f21d23213b1054ef4d42958e7d1d179a6caf3a9b5bb47a4c0c8c37c2b709089f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.06218",
    "kind": "arxiv",
    "version": 2
  }
}