Pith Number

pith:ZU7MO2GX

pith:2018:ZU7MO2GXCTUWR74SRKQAWZLDGK

not attested not anchored not stored refs pending

The Strong Gravitational Lens Finding Challenge

Alessandro Sonnenfeld, Amit Tagore, Andrew Davies, Camille Avestruz, Carlo Enrico Petrillo, Christoph Sch\"afer, Chun-Liang Li, Cl\'ecio R. Bom, Crescenzo Tortora, Diego Tuccillo, Emmanuel Bertin, Eric Jullo, Etienne Decenci\`ere, Fabio Bellagamba, F. Courbin, Fran\c{c}ois Lanusse, Georgios Vernardos, Gijs A. Verdoes Kleijn, Jean-Paul Kneib, L\'eon V. E. Koopmans, Manuel B. Valent\'in, Marc Huertas-Company, Mario Geiger, Martin Makler, Matthew Lightman, M. Meneghetti, Nan Li, Neal Jackson, Philippa Hartley, Quanbin Ma, Raphael Gavazzi, R. Benton Metcalf, R\'emi Cabanac, R\'emi Flamary, Santiago Velasco-Forero, Stephen Serjeant

arxiv:1802.03609 v3 · 2018-02-10 · astro-ph.GA · astro-ph.CO · 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{ZU7MO2GXCTUWR74SRKQAWZLDGK}

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	2026-05-17T23:45:41.054469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd3ec768d714e968ff928aa00b6563328989437e3766a5c7185a7bfccac7a6ae

Aliases

arxiv: 1802.03609 · arxiv_version: 1802.03609v3 · doi: 10.48550/arxiv.1802.03609 · pith_short_12: ZU7MO2GXCTUW · pith_short_16: ZU7MO2GXCTUWR74S · pith_short_8: ZU7MO2GX

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/ZU7MO2GXCTUWR74SRKQAWZLDGK \
  | 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: cd3ec768d714e968ff928aa00b6563328989437e3766a5c7185a7bfccac7a6ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6a6007cf7bbd1a6ce04f66bec007ec45a9567cc911bf438632a067aaee87cf30",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-10T15:25:29Z",
    "title_canon_sha256": "f76265d993db28cd822913019122f6000764133ba30bc9c9c90812fa77ce824a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.03609",
    "kind": "arxiv",
    "version": 3
  }
}