Pith Number

pith:65IRMRII

pith:2022:65IRMRII52CAZGUHB4IYGCA6LS

not attested not anchored not stored refs pending

NuSTAR Observations of Intrinsically X-ray Weak Quasar Candidates: An Obscuration-Only Scenario

B. Luo, Chaojun Wang, D. M. Alexander, D. Stern, F. E. Bauer, Hezhen Liu, Jian Huang, S. C. Gallagher, W. N. Brandt

arxiv:2208.04961 v1 · 2022-08-09 · astro-ph.HE · astro-ph.CO · 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{65IRMRII52CAZGUHB4IYGCA6LS}

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	2026-07-05T04:57:16.529551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f751164508ee840c9a870f1183081e5cbb8836e9c4cf16d74436b4060eb3abe7

Aliases

arxiv: 2208.04961 · arxiv_version: 2208.04961v1 · doi: 10.48550/arxiv.2208.04961 · pith_short_12: 65IRMRII52CA · pith_short_16: 65IRMRII52CAZGUH · pith_short_8: 65IRMRII

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/65IRMRII52CAZGUHB4IYGCA6LS \
  | 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: f751164508ee840c9a870f1183081e5cbb8836e9c4cf16d74436b4060eb3abe7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5ebb58ad6340b70371d2d22805df47c585f522f2058bb694949e9f051f50a50",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-08-09T18:00:02Z",
    "title_canon_sha256": "9992be3764ef8527e115d927e5dcf1f406178caa42f4e0f1c816821b4ae0f039"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.04961",
    "kind": "arxiv",
    "version": 1
  }
}