Pith Number

pith:74NRPTXJ

pith:2006:74NRPTXJTXYHBIPLSCKZVDRC67

not attested not anchored not stored refs pending

X-ray properties of the quasar HE0450-2958

Fang Yang, Jian-Min Wang, Xiao-Rong Lv, Xin-Lin Zhou

arxiv:astro-ph/0611629 v1 · 2006-11-20 · 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{74NRPTXJTXYHBIPLSCKZVDRC67}

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	2026-07-04T15:24:57.715233Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff1b17cee99df070a1eb90959a8e22f7d28a1aaa62e688c8365153611c5a90f2

Aliases

arxiv: astro-ph/0611629 · arxiv_version: astro-ph/0611629v1 · doi: 10.48550/arxiv.astro-ph/0611629 · pith_short_12: 74NRPTXJTXYH · pith_short_16: 74NRPTXJTXYHBIPL · pith_short_8: 74NRPTXJ

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/74NRPTXJTXYHBIPLSCKZVDRC67 \
  | 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: ff1b17cee99df070a1eb90959a8e22f7d28a1aaa62e688c8365153611c5a90f2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6afbda17460ec8e49a51d950a2095e03e3b0459c5b1262ab0cb266d2d1d8ced",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-20T14:35:30Z",
    "title_canon_sha256": "dfa700a673d115ede93b9bf7e07215fb1af474e33af0bb4237957665e7980060"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611629",
    "kind": "arxiv",
    "version": 1
  }
}