Pith Number

pith:X762ZGTP

pith:2022:X762ZGTPWCCJ4XD2LMRFX4WNAI

not attested not anchored not stored refs pending

Changing-look Active Galactic Nuclei

Benny Trakhtenbrot, Claudio Ricci

arxiv:2211.05132 v1 · 2022-11-09 · astro-ph.GA · astro-ph.CO · 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{X762ZGTPWCCJ4XD2LMRFX4WNAI}

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.

Cited by

3 papers in Pith

The emergence of X-ray emission lines during relativistic radio-jet formation in the changing-look active galactic nucleus 1ES 1927+654

Identifying Changing-Look AGN Transitions in Light Curve Data with the Zwicky Transient Facility

Optical Variability Structure Function of Low-Luminosity AGN using ATLAS Lightcurves

Receipt and verification

First computed	2026-07-05T05:14:46.979645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bffdac9a6fb0849e5c7a5b225bf2cd02138c5c5bd5c577742ddd6cd5068500e7

Aliases

arxiv: 2211.05132 · arxiv_version: 2211.05132v1 · doi: 10.48550/arxiv.2211.05132 · pith_short_12: X762ZGTPWCCJ · pith_short_16: X762ZGTPWCCJ4XD2 · pith_short_8: X762ZGTP

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/X762ZGTPWCCJ4XD2LMRFX4WNAI \
  | 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: bffdac9a6fb0849e5c7a5b225bf2cd02138c5c5bd5c577742ddd6cd5068500e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be88777713767f51b954ec3370454fc6d8dabfcd9504fddffe66a53c07c1d855",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-11-09T19:00:00Z",
    "title_canon_sha256": "cf99d54458b3579a419392f6d4e53762209516b67b26734ae81f187dbd7612bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2211.05132",
    "kind": "arxiv",
    "version": 1
  }
}