Pith Number

pith:O3WJGPBG

pith:2020:O3WJGPBGX6X6B2FLYSAPUHM3YQ

not attested not anchored not stored refs pending

Short time-scale variability of $\gamma$-ray-emitting narrow-line Seyfert 1 galaxies in optical and UV bands

Filippo D'Ammando (INAF - IRA Bologna)

arxiv:2009.00630 v1 · 2020-09-01 · 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{O3WJGPBGX6X6B2FLYSAPUHM3YQ}

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	2026-07-05T01:33:44.265621Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76ec933c26bfafe0e8abc480fa1d9bc42589f1919b5f2a4533d63517dc5171a4

Aliases

arxiv: 2009.00630 · arxiv_version: 2009.00630v1 · doi: 10.48550/arxiv.2009.00630 · pith_short_12: O3WJGPBGX6X6 · pith_short_16: O3WJGPBGX6X6B2FL · pith_short_8: O3WJGPBG

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/O3WJGPBGX6X6B2FLYSAPUHM3YQ \
  | 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: 76ec933c26bfafe0e8abc480fa1d9bc42589f1919b5f2a4533d63517dc5171a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abfc23ac6f6c22545e895670d6fe0e22cba0d0210f718cd1947ab479b3aafd88",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-09-01T18:01:47Z",
    "title_canon_sha256": "7367603a79654864f0d1795ff16794387976161a475b446f3c67c68ebe8b5c8c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.00630",
    "kind": "arxiv",
    "version": 1
  }
}