Pith Number

pith:LDWWMIH7

pith:2025:LDWWMIH7225ZFFIKDMDH5X5VCJ

not attested not anchored not stored refs pending

A new quasar strongly-lensed candidate by the galaxy cluster WHJ0400-27 with a $18''$ image-separation

A. Acebron, A. Mercurio, C. Grillo, D. Abriola, F. Mannucci, G. Angora, G. Di Rosa, G. Granata, L. Bazzanini, M. D'Addona, M. Lombardi, M. Maturi, M. Meneghetti, M. Radovich, M. Scialpi, P. Bergamini, P. Rosati

arxiv:2504.07622 v1 · 2025-04-10 · 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{LDWWMIH7225ZFFIKDMDH5X5VCJ}

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	2026-07-05T11:10:37.218436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58ed6620ffd6bb92950a1b067edfb51246ee6ca703a30409438dc23b531b5e21

Aliases

arxiv: 2504.07622 · arxiv_version: 2504.07622v1 · doi: 10.48550/arxiv.2504.07622 · pith_short_12: LDWWMIH7225Z · pith_short_16: LDWWMIH7225ZFFIK · pith_short_8: LDWWMIH7

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/LDWWMIH7225ZFFIKDMDH5X5VCJ \
  | 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: 58ed6620ffd6bb92950a1b067edfb51246ee6ca703a30409438dc23b531b5e21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "48c548a0646baaa9d89f7648ccb14c9f98e179d2b886d62ebb0994de2f1d311c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-10T10:11:16Z",
    "title_canon_sha256": "49a2c7ae0b908412cfaacfc3b4e5fd203ba62237ec853571bb4ed8060a4dfe56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.07622",
    "kind": "arxiv",
    "version": 1
  }
}