Pith Number

pith:6EELPFLP

pith:2018:6EELPFLPS7F4O7DS6GGWK6NMOV

not attested not anchored not stored refs pending

Scaling of X-ray spectral properties of a black hole in the Seyfert 1 galaxy NGC~7469

Elena Seifina (LAPTH, France), Italy), Lev Titarchuk (University of Ferrara, Lyubov Ugolkova (GAISH, MSU, Russia)

arxiv:1808.07091 v1 · 2018-08-21 · astro-ph.GA · 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{6EELPFLPS7F4O7DS6GGWK6NMOV}

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	2026-05-18T00:00:50.949551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f108b7956f97cbc77c72f18d6579ac754d7c8403b8ebc99e90f2b746bf8429d9

Aliases

arxiv: 1808.07091 · arxiv_version: 1808.07091v1 · doi: 10.48550/arxiv.1808.07091 · pith_short_12: 6EELPFLPS7F4 · pith_short_16: 6EELPFLPS7F4O7DS · pith_short_8: 6EELPFLP

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/6EELPFLPS7F4O7DS6GGWK6NMOV \
  | 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: f108b7956f97cbc77c72f18d6579ac754d7c8403b8ebc99e90f2b746bf8429d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b70ff64307352f9b4ec0bc169dba2785db2c4d11fb7ccd12afef1d0d86f7391",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-08-21T19:17:26Z",
    "title_canon_sha256": "7a96581798242c7af0ca5f49771472c210c1e3ef3f780389236ff88f017ab43e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07091",
    "kind": "arxiv",
    "version": 1
  }
}