Pith Number

pith:IFTFJZ55

pith:2017:IFTFJZ55TNDD72PUYPQ6B5XHJ3

not attested not anchored not stored refs pending

The X-ray variability of Seyfert 1.8/1.9 galaxies

Francesca Panessa, Isabel Marquez, Josefa Masegosa, Lorena Hernandez-Garcia, Matteo Guainazzi, Omaira Gonzalez-Martin

arxiv:1703.05250 v1 · 2017-03-15 · 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{IFTFJZ55TNDD72PUYPQ6B5XHJ3}

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	2026-05-18T00:42:01.508333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

416654e7bd9b463fe9f4c3e1e0f6e74efd4d8604e48175c202dcf08d6978de66

Aliases

arxiv: 1703.05250 · arxiv_version: 1703.05250v1 · doi: 10.48550/arxiv.1703.05250 · pith_short_12: IFTFJZ55TNDD · pith_short_16: IFTFJZ55TNDD72PU · pith_short_8: IFTFJZ55

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/IFTFJZ55TNDD72PUYPQ6B5XHJ3 \
  | 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: 416654e7bd9b463fe9f4c3e1e0f6e74efd4d8604e48175c202dcf08d6978de66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21b10c1eafbf1ac7a6dd4cfccd1e496f604c990a9dbb1d08b658833866d302e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-03-15T16:44:41Z",
    "title_canon_sha256": "14c7ca03e64c1eb22cea6c37cd9ec09ddb8efafbdb65bbe6c8cd989e10df5b35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.05250",
    "kind": "arxiv",
    "version": 1
  }
}