Pith Number

pith:J6EYCL5L

pith:2019:J6EYCL5LMBOIWNZT5KRHHGV7ZT

not attested not anchored not stored refs pending

Properties of radio-loud quasars in Sloan Digital Sky Survey

Haritma Gaur, Hengxiao Guo, Minfeng Gu, S. Ramya

arxiv:1908.09489 v1 · 2019-08-26 · astro-ph.HE · 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{J6EYCL5LMBOIWNZT5KRHHGV7ZT}

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	2026-07-05T00:14:14.922455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f89812fab605c8b3733eaa2739abfccd128e6e0ea3e60e8249cfe7b7f00cb3d

Aliases

arxiv: 1908.09489 · arxiv_version: 1908.09489v1 · doi: 10.48550/arxiv.1908.09489 · pith_short_12: J6EYCL5LMBOI · pith_short_16: J6EYCL5LMBOIWNZT · pith_short_8: J6EYCL5L

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/J6EYCL5LMBOIWNZT5KRHHGV7ZT \
  | 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: 4f89812fab605c8b3733eaa2739abfccd128e6e0ea3e60e8249cfe7b7f00cb3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04800a07820d0c7e70033609fb7323cb88c9629b88cb1cc3e775568d81b820cf",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-26T06:22:00Z",
    "title_canon_sha256": "81eb16160d13a5455ee3f42d5a12ef58396cc96880a113d6caa6ea4594249b94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.09489",
    "kind": "arxiv",
    "version": 1
  }
}