Pith Number

pith:5LWDGLPC

pith:2018:5LWDGLPCAFTGSDDYBVZRJYHGRO

not attested not anchored not stored refs pending

Steep Hard-X-ray Spectra Indicate Extremely High Accretion Rates in Weak Emission-Line Quasars

(2) U. Washington, (3) Penn State U., (4) Bates College, (5) U. Arizona, (6) Nanjing U., (7) ICRAR-Curtin, (8) Drexel U., (9) Xiamen U.), A.M. Diamond-Stanic (4), Andrea Marlar (1), B. Luo (6), Donald P. Schneider (3), Gordon T. Richards (8), Jianfeng Wu (9) ((1) U. North Texas, Ohad Shemmer (1), R.M. Plotkin (7), S.F. Anderson (2), W.N. Brandt (3), X. Fan (5)

arxiv:1808.01306 v1 · 2018-08-03 · astro-ph.HE · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5LWDGLPCAFTGSDDYBVZRJYHGRO}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:03:45.883931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eaec332de20166690c780d7314e0e68b8cad2c1f05667efc58723592d50226c7

Aliases

arxiv: 1808.01306 · arxiv_version: 1808.01306v1 · doi: 10.48550/arxiv.1808.01306 · pith_short_12: 5LWDGLPCAFTG · pith_short_16: 5LWDGLPCAFTGSDDY · pith_short_8: 5LWDGLPC

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/5LWDGLPCAFTGSDDYBVZRJYHGRO \
  | 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: eaec332de20166690c780d7314e0e68b8cad2c1f05667efc58723592d50226c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1a282883db2640eddcebd5c209f84440b05c0a2f0b368ac8ef852ff8c52cc98",
    "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": "2018-08-03T18:47:56Z",
    "title_canon_sha256": "91a7f9c70743c08fffbc0fc2bc10604df4fc1619c36bb4083b8fc794a92a2d5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.01306",
    "kind": "arxiv",
    "version": 1
  }
}