Pith Number

pith:ASUG6GA5

pith:2021:ASUG6GA5EZMSY2NHQ2MXPQXXBG

not attested not anchored not stored refs pending

Small-scale double quasars discovered in the DECam Legacy Survey

Yu-Ching Chen

arxiv:2109.06881 v1 · 2021-09-14 · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ASUG6GA5EZMSY2NHQ2MXPQXXBG}

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

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

Receipt and verification

First computed	2026-07-05T03:14:36.926737Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

04a86f181d26592c69a7869977c2f7099b1882b12118a89da2066c0bd0da1694

Aliases

arxiv: 2109.06881 · arxiv_version: 2109.06881v1 · doi: 10.48550/arxiv.2109.06881 · pith_short_12: ASUG6GA5EZMS · pith_short_16: ASUG6GA5EZMSY2NH · pith_short_8: ASUG6GA5

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/ASUG6GA5EZMSY2NHQ2MXPQXXBG \
  | 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: 04a86f181d26592c69a7869977c2f7099b1882b12118a89da2066c0bd0da1694

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa93c2b5c686e40db6d4339e0996f7e042c86f357e847651916982cb47a02533",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-14T18:00:00Z",
    "title_canon_sha256": "74ad029af0fc31955ae211fe9ef66affe0d9951c9dc000256588164cd2b63f72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.06881",
    "kind": "arxiv",
    "version": 1
  }
}