Pith Number

pith:BTXQGNPL

pith:2017:BTXQGNPLVMWO66MC7CA7FQYOYT

not attested not anchored not stored refs pending

Exploratory X-ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: No Evidence for Evolution in X-ray Variability

(2) Penn State U., (3) U. Napoli, (4) Tel Aviv U., (5) U. Bologna, (6) U. Chile), Cristian Vignali (5), Donald P. Schneider (2) ((1) U. North Texas, Maurizio Paolillo (3), Ohad Shemmer (1), Paulina Lira (6), Shai Kaspi (4), W.N. Brandt (2)

arxiv:1709.03521 v1 · 2017-09-11 · astro-ph.HE · 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{BTXQGNPLVMWO66MC7CA7FQYOYT}

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	2026-05-18T00:32:38.976958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cef0335ebab2cef7982f881f2c30ec4deea60316165c252feddbd40ae0e9aa1

Aliases

arxiv: 1709.03521 · arxiv_version: 1709.03521v1 · doi: 10.48550/arxiv.1709.03521 · pith_short_12: BTXQGNPLVMWO · pith_short_16: BTXQGNPLVMWO66MC · pith_short_8: BTXQGNPL

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/BTXQGNPLVMWO66MC7CA7FQYOYT \
  | 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: 0cef0335ebab2cef7982f881f2c30ec4deea60316165c252feddbd40ae0e9aa1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c759053a375dae982f28862d3b99a28f79e1e49c41836130ef9c2b140eba875b",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2017-09-11T18:03:15Z",
    "title_canon_sha256": "05317648294b0c5542c45161a4d67c7a9080e11e7d79d8f79159f6747185fdb8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.03521",
    "kind": "arxiv",
    "version": 1
  }
}