Pith Number

pith:XJR4KC4J

pith:2019:XJR4KC4JS4I2CSSMEPEFIQ4QOR

not attested not anchored not stored refs pending

The nature of the broadband X-ray variability in the dwarf Seyfert galaxy NGC 4395

A. M. Lohfink, A. Zoghbi, D. Barret, D. Stern, E. Gallo, E. M. Cackett, E. Nardini, E. S. Kammoun, G. Risaliti, J. M. Miller., J. Raymond, J. S. Kaastra, L. W. Brenneman, M. Koss, M. T. Reynolds, R. F. Mushotzky, W. N. Brandt

arxiv:1910.11317 v2 · 2019-10-24 · 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{XJR4KC4JS4I2CSSMEPEFIQ4QOR}

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	2026-07-05T00:31:26.946492Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba63c50b899711a14a4c23c8544390746f1ca41ddbaf899e8901e1f22e5e6d8a

Aliases

arxiv: 1910.11317 · arxiv_version: 1910.11317v2 · doi: 10.48550/arxiv.1910.11317 · pith_short_12: XJR4KC4JS4I2 · pith_short_16: XJR4KC4JS4I2CSSM · pith_short_8: XJR4KC4J

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/XJR4KC4JS4I2CSSMEPEFIQ4QOR \
  | 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: ba63c50b899711a14a4c23c8544390746f1ca41ddbaf899e8901e1f22e5e6d8a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18081d1a7bb7cc5d7946b49f81f399218c3270a0f1ffbb040a7c30b17b430b1e",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-10-24T17:51:33Z",
    "title_canon_sha256": "b1e212ec776a7493415e9756e4cdafe4a9d0a6286be66bfdefb858f5f8ba8ea7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1910.11317",
    "kind": "arxiv",
    "version": 2
  }
}