Pith Number

pith:N65R3JVJ

pith:2004:N65R3JVJRWQ3MCNZ4V4YEK37QE

not attested not anchored not stored refs pending

Obscured Binary Quasar Cores in SDSS J104807.74+005543.5?

Cheng Li (USTC), Hongyan Zhou, Tinggui Wang, Xiaobo Dong, Xueguang Zhang

arxiv:astro-ph/0411167 v1 · 2004-11-07 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{N65R3JVJRWQ3MCNZ4V4YEK37QE}

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	2026-05-18T04:25:12.051297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6fbb1da6a98da1b609b9e579822b7f81338a8cd328bc346470a4f72afca07013

Aliases

arxiv: astro-ph/0411167 · arxiv_version: astro-ph/0411167v1 · doi: 10.48550/arxiv.astro-ph/0411167 · pith_short_12: N65R3JVJRWQ3 · pith_short_16: N65R3JVJRWQ3MCNZ · pith_short_8: N65R3JVJ

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/N65R3JVJRWQ3MCNZ4V4YEK37QE \
  | 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: 6fbb1da6a98da1b609b9e579822b7f81338a8cd328bc346470a4f72afca07013

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d60aceac4c9e0f37835eb01c414235f8f588c6ef7666028aeb74287e55b880d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-07T04:50:35Z",
    "title_canon_sha256": "53263806a0216ac2eb8413821d4e96bea5d671f98bc88e06e68f1ba2b4d3736d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411167",
    "kind": "arxiv",
    "version": 1
  }
}