Pith Number

pith:6HFFDIWZ

pith:2014:6HFFDIWZKLXQLVXE2YFJIGNXW5

not attested not anchored not stored refs pending

Exploratory X-ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: Initial Results

(10) U. Washington), (2) Penn State U., 3), (3) Penn State U. - Institute for Gravitation, (4) U. Napoli, 5), (5) ASI Science Data Center, (6) Tel Aviv U., 7), (7) Technion, (8) U. Bologna, (9) U. Chile, Cristian Vignali (8), Donald P. Schneider (2, Matthew S. Stein (1), Maurizio Paolillo (4, Ohad Shemmer (1), Paulina Lira (9), Robert R. Gibson (10) ((1) U. North Texas, Shai Kaspi (6, the Cosmos, W.N. Brandt (2

arxiv:1401.5496 v1 · 2014-01-21 · astro-ph.CO · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6HFFDIWZKLXQLVXE2YFJIGNXW5}

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.

Cited by

1 paper in Pith

Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds

Receipt and verification

First computed	2026-05-18T02:57:07.464756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1ca51a2d952ef05d6e4d60a9419b7b74809ff824b0257d0ed3daa0249d5d1f0

Aliases

arxiv: 1401.5496 · arxiv_version: 1401.5496v1 · doi: 10.48550/arxiv.1401.5496 · pith_short_12: 6HFFDIWZKLXQ · pith_short_16: 6HFFDIWZKLXQLVXE · pith_short_8: 6HFFDIWZ

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/6HFFDIWZKLXQLVXE2YFJIGNXW5 \
  | 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: f1ca51a2d952ef05d6e4d60a9419b7b74809ff824b0257d0ed3daa0249d5d1f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ccc27f9b3d95037f990e98b7e5163c41f3a1ee646c52971e8e1d09908ee8c1c",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2014-01-21T21:36:55Z",
    "title_canon_sha256": "a68bc80cc8d138b8fec30fd4f993c8017208ff2428bb4ff797430042ed2bd1a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5496",
    "kind": "arxiv",
    "version": 1
  }
}