Pith Number

pith:VRDCDTOI

pith:2026:VRDCDTOIA2NXDLB4GDO7DMRCVO

not attested not anchored not stored refs pending

Search for Quasar Pairs with ${\it Gaia}$ Astrometric Data. III. Discovery of 9 dual and projected quasars

Jianghua Wu, Liang Jing, Qihang Chen, Xingyu Zhu, Zhuojun Deng, Zizhao He

arxiv:2607.00093 v1 · 2026-06-30 · 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{VRDCDTOIA2NXDLB4GDO7DMRCVO}

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	2026-07-02T00:18:34.196978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac4621cdc8069b71ac3c30ddf1b222ab907be4a1dfa03eb264e1e4fcc3b5d82a

Aliases

arxiv: 2607.00093 · arxiv_version: 2607.00093v1 · doi: 10.48550/arxiv.2607.00093 · pith_short_12: VRDCDTOIA2NX · pith_short_16: VRDCDTOIA2NXDLB4 · pith_short_8: VRDCDTOI

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/VRDCDTOIA2NXDLB4GDO7DMRCVO \
  | 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: ac4621cdc8069b71ac3c30ddf1b222ab907be4a1dfa03eb264e1e4fcc3b5d82a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "992ee22fcc8dc9d64e19dae34c404815b4705e5e9f70ce1ce57177b748191b42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-30T19:34:34Z",
    "title_canon_sha256": "356ae34d9ab51024df534e8ac6315f3d5c29e25c9e33b392c5f556e11f3eb1c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.00093",
    "kind": "arxiv",
    "version": 1
  }
}