Pith Number

pith:JPCPSVB3

pith:2014:JPCPSVB3RYUWTFSWQP25IIJXFJ

not attested not anchored not stored refs pending

NuSTAR unveils a Compton-thick Type 2 quasar in Mrk 34

A.C. Fabian, A. Comastri, A. Del Moro, A.F. Ptak, B. Luo, C.J. Hailey, C.M. Urry, D.J. Walton, D.M. Alexander, D.R. Ballantyne, D. Stern, F.A. Harrison, F.E. Bauer, F.E. Christensen, G.B. Lansbury, G.M. Madejski, M. Balokovi\'c, M. Brightman, M. Elvis, M. Koss, P. Ar\'Evalo, P. Gandhi (Durham), R.C. Hickox, S.E. Boggs, S.H. Teng, S.M. LaMassa, S. Puccetti, W.N. Brandt, W.W. Craig, W.W. Zhang

arxiv:1407.1844 v1 · 2014-07-07 · 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{JPCPSVB3RYUWTFSWQP25IIJXFJ}

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	2026-05-18T01:42:41.194299Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bc4f9543b8e2969965683f5d421372a787d4482bbfbeb4f7d953abc0015c36e

Aliases

arxiv: 1407.1844 · arxiv_version: 1407.1844v1 · doi: 10.48550/arxiv.1407.1844 · pith_short_12: JPCPSVB3RYUW · pith_short_16: JPCPSVB3RYUWTFSW · pith_short_8: JPCPSVB3

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/JPCPSVB3RYUWTFSWQP25IIJXFJ \
  | 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: 4bc4f9543b8e2969965683f5d421372a787d4482bbfbeb4f7d953abc0015c36e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a949d66a72ce30cef238e7fe49b314958e5e646c9ea1e160147983ea9da81ed1",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-07-07T20:00:11Z",
    "title_canon_sha256": "bc0354e4e50d86eba40e2b2860e33f6499fb53a57351bc704f669687eff4872d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1844",
    "kind": "arxiv",
    "version": 1
  }
}