Pith Number

pith:XPGASH46

pith:2019:XPGASH46PUBY5JZA6NSNQW2IAP

not attested not anchored not stored refs pending

Gaia GraL: Gaia DR2 Gravitational Lens Systems. V. Doubly-imaged QSOs discovered from entropy and wavelets

A.J. Drake, A. Krone-Martins, A. M. Nierenberg, C. Boehm, C. Ducourant, C. Spindola-Duarte, D. Dobie, D. Sluse, D. Stern, E. Slezak, F. Mignard, J.-F. LeCampion, J. Kl\"uter, J. Surdej, J. Wambsganss, L. Delchambre, L. Galluccio, M.J. Graham, O. Wertz, P. Jalan, R. Teixeira, S.G. Djorgovski, S. Scarano Jr., T. Murphy, U. Bastian

arxiv:1912.08977 v1 · 2019-12-19 · astro-ph.GA · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XPGASH46PUBY5JZA6NSNQW2IAP}

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.

Cited by

2 papers in Pith

Taking Inventory of the Most Promising Lensed Radio Sources for Constraining Fundamental Properties of Dark Matter

Cosmic Duets I. High-spatial resolution spectroscopy of dual and lensed AGN with MUSE-NFM

Receipt and verification

First computed	2026-07-05T00:27:22.376512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbcc091f9e7d038ea720f364d85b4803d6b341f32bc8751a5a425ba0dbdd4034

Aliases

arxiv: 1912.08977 · arxiv_version: 1912.08977v1 · doi: 10.48550/arxiv.1912.08977 · pith_short_12: XPGASH46PUBY · pith_short_16: XPGASH46PUBY5JZA · pith_short_8: XPGASH46

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/XPGASH46PUBY5JZA6NSNQW2IAP \
  | 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: bbcc091f9e7d038ea720f364d85b4803d6b341f32bc8751a5a425ba0dbdd4034

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18a4e9cf9d1bd601c1ea81a6badaeaf30f779829ad1e1d0670930a144cfc2161",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-19T01:31:54Z",
    "title_canon_sha256": "b668de8b2be5d6ba8db389275d5f3206c71bcf15e4f878b71f8447f086382ec8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.08977",
    "kind": "arxiv",
    "version": 1
  }
}