Pith Number

pith:EEJ3WVOJ

pith:2011:EEJ3WVOJVVIDFCU3A74MWI2AEF

not attested not anchored not stored refs pending

Three QSOs acting as strong gravitational lenses

AIfA), A. Mahabal (Caltech), C. Faure (EPFL), D. Sluse (ZAH, D. Stern (JPL), F. Courbin (EPFL), F. Rerat (EPFL), G. Meylan (EPFL), M. Tewes (EPFL), R. Dheeraj (Maryland), S. G. Djorgovski (Caltech), T. Boroson (NOAO)

arxiv:1110.5514 v1 · 2011-10-25 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EEJ3WVOJVVIDFCU3A74MWI2AEF}

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	2026-05-18T02:00:04.092648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2113bb55c9ad50328a9b07f8cb23402160ebaa29805d6830ee52182591632a0e

Aliases

arxiv: 1110.5514 · arxiv_version: 1110.5514v1 · doi: 10.48550/arxiv.1110.5514 · pith_short_12: EEJ3WVOJVVID · pith_short_16: EEJ3WVOJVVIDFCU3 · pith_short_8: EEJ3WVOJ

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/EEJ3WVOJVVIDFCU3A74MWI2AEF \
  | 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: 2113bb55c9ad50328a9b07f8cb23402160ebaa29805d6830ee52182591632a0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c83be70cd3061a66180fa63d99f77f425d2b43b46174484205d9dbc8397b7cb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-10-25T14:27:28Z",
    "title_canon_sha256": "be11a3fa346b0c99ee846e405e860e83c34266ab8451fba539d0ad490fbd4a6c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1110.5514",
    "kind": "arxiv",
    "version": 1
  }
}