Pith Number

pith:BNXKLCPI

pith:2018:BNXKLCPIJ3XEYSTSF7WVP6MXQO

not attested not anchored not stored refs pending

New database for a sample of optically bright lensed quasars in the northern hemisphere

Alex Oscoz, Luis J. Goicoechea, Rodrigo Gil-Merino, Vyacheslav N. Shalyapin

arxiv:1805.10336 v1 · 2018-05-25 · astro-ph.GA · 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{BNXKLCPIJ3XEYSTSF7WVP6MXQO}

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	2026-05-18T00:06:59.610916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b6ea589e84eee4c4a722fed57f9978396b607db19986f4bf5161b102c46bb36

Aliases

arxiv: 1805.10336 · arxiv_version: 1805.10336v1 · doi: 10.48550/arxiv.1805.10336 · pith_short_12: BNXKLCPIJ3XE · pith_short_16: BNXKLCPIJ3XEYSTS · pith_short_8: BNXKLCPI

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/BNXKLCPIJ3XEYSTSF7WVP6MXQO \
  | 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: 0b6ea589e84eee4c4a722fed57f9978396b607db19986f4bf5161b102c46bb36

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ff7b69716bc4eb307fafdbfa69c592cd81abe9180874d7bc28041f0ca737a90",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-05-25T19:25:56Z",
    "title_canon_sha256": "db94634d1be593c141097f4732bc9f84ed34b85ea1dc0da7bec19654221f9097"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.10336",
    "kind": "arxiv",
    "version": 1
  }
}