Pith Number

pith:2QLMRHV6

pith:2018:2QLMRHV6J6LLOQ4ZNBVCT5RN2K

not attested not anchored not stored refs pending

Another Quadruply Lensed Quasar from the VST-ATLAS Survey

M. Read, N. D. Morgan, P. L. Schechter, T. Anguita, T.Shanks

arxiv:1805.01939 v1 · 2018-05-04 · 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{2QLMRHV6J6LLOQ4ZNBVCT5RN2K}

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	2026-05-18T00:16:41.505553Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d416c89ebe4f96b74399686a29f62dd2965a36cb12640d43d5a6251d4a8f5cce

Aliases

arxiv: 1805.01939 · arxiv_version: 1805.01939v1 · doi: 10.48550/arxiv.1805.01939 · pith_short_12: 2QLMRHV6J6LL · pith_short_16: 2QLMRHV6J6LLOQ4Z · pith_short_8: 2QLMRHV6

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/2QLMRHV6J6LLOQ4ZNBVCT5RN2K \
  | 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: d416c89ebe4f96b74399686a29f62dd2965a36cb12640d43d5a6251d4a8f5cce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53bf43396749928ec9e5f46b5e15c50b9dfa0ea738a56bbff334b14d799e4b3d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-04T21:16:55Z",
    "title_canon_sha256": "dc008b246a92c831c76f2e25bb617e3af3b63457cf89d3de21db45d9eace5f99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.01939",
    "kind": "arxiv",
    "version": 1
  }
}