Pith Number

pith:QDCNTJPA

pith:2018:QDCNTJPAGKENP7MXYZZJ7C3IYB

not attested not anchored not stored refs pending

Gravitationally Lensed Quasars in Gaia: II. Discovery of 24 Lensed Quasars

Cameron A. Lemon, Fernanda Ostrovski, Matthew W. Auger, Richard G. McMahon

arxiv:1803.07601 v2 · 2018-03-20 · 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{QDCNTJPAGKENP7MXYZZJ7C3IYB}

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

1 paper in Pith

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

Receipt and verification

First computed	2026-05-18T00:12:31.901043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80c4d9a5e03288d7fd97c6729f8b68c05415b808d06b7b683cad8ac7db2e56e2

Aliases

arxiv: 1803.07601 · arxiv_version: 1803.07601v2 · doi: 10.48550/arxiv.1803.07601 · pith_short_12: QDCNTJPAGKEN · pith_short_16: QDCNTJPAGKENP7MX · pith_short_8: QDCNTJPA

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/QDCNTJPAGKENP7MXYZZJ7C3IYB \
  | 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: 80c4d9a5e03288d7fd97c6729f8b68c05415b808d06b7b683cad8ac7db2e56e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0aaf83f347aa35a5fba9bf360a30b05162e94f123f4a474fd96badb701d20085",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-03-20T18:47:00Z",
    "title_canon_sha256": "d4224f5e0fb6015604e4ee61b74edb971dca8004e20e42f9ca2a01920b99478b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.07601",
    "kind": "arxiv",
    "version": 2
  }
}