Pith Number

pith:YJBC32VC

pith:2013:YJBC32VCQVAI75W5IOPKE3ECBL

not attested not anchored not stored refs pending

Strong UV and X-ray variability of the Narrow Line Seyfert 1 Galaxy WPVS 007 -- on the nature of the X-ray low state

Adrian Lucy (U Oklahoma), Brad N. Barlow (PSU), Dirk Grupe (PSU), Julia Scharwaechter (Observatoire de Paris), Karen M. Leighly (U Oklahoma), Matthias Dietrich (Ohio University), S. Komossa (MPIfR)

arxiv:1307.7713 v1 · 2013-07-29 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YJBC32VCQVAI75W5IOPKE3ECBL}

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	2026-05-18T01:48:33.195364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c2422deaa285408ff6dd439ea26c820ae16025e0ff4c3c079b83db6d85f185f8

Aliases

arxiv: 1307.7713 · arxiv_version: 1307.7713v1 · doi: 10.48550/arxiv.1307.7713 · pith_short_12: YJBC32VCQVAI · pith_short_16: YJBC32VCQVAI75W5 · pith_short_8: YJBC32VC

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/YJBC32VCQVAI75W5IOPKE3ECBL \
  | 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: c2422deaa285408ff6dd439ea26c820ae16025e0ff4c3c079b83db6d85f185f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b52c485def4efe2e68423db5d8ce3299063cfd70f9421045f8b80143976d7927",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-07-29T20:00:03Z",
    "title_canon_sha256": "7a728013b04ca4819a0e90817dd5866b04d13c4dbf7f6b784fdadf4c899501a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.7713",
    "kind": "arxiv",
    "version": 1
  }
}