Pith Number

pith:4BPKOFYC

pith:2020:4BPKOFYCMKIWHDXWBCH6ELKEI7

not attested not anchored not stored refs pending

The destruction and recreation of the X-ray corona in a changing-look Active Galactic Nucleus

A. C. Fabian, B. Trakhtenbrot, C.-H. Chan, C. L. MacLeod, C. Ricci, D. Altamirano, D. Pasham, E. Cackett, E. Kara, I. Arcavi, J. Steiner, K. C. Gendreau, L. C. Ho, M. Loewenstein, P. Gandhi, P. Kosec, R. Li, R. Remillard, Z. Arzoumanian

arxiv:2007.07275 v1 · 2020-07-14 · 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{4BPKOFYCMKIWHDXWBCH6ELKEI7}

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

1 paper in Pith

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

Receipt and verification

First computed	2026-07-05T01:21:09.205529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e05ea717026291638ef6088fe22d4447d40fcc560e41f1c84625a8396bb441a3

Aliases

arxiv: 2007.07275 · arxiv_version: 2007.07275v1 · doi: 10.48550/arxiv.2007.07275 · pith_short_12: 4BPKOFYCMKIW · pith_short_16: 4BPKOFYCMKIWHDXW · pith_short_8: 4BPKOFYC

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/4BPKOFYCMKIWHDXWBCH6ELKEI7 \
  | 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: e05ea717026291638ef6088fe22d4447d40fcc560e41f1c84625a8396bb441a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b8bd1f8342f9cc4b84d5da4fa12da1a1a76d00caf3d009edbd340ec5cc294c10",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-07-14T18:03:58Z",
    "title_canon_sha256": "ca9453788ae98d78f2b5017674f3f54a3ce802c54cb28e78e728c6fcfdbc1d9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.07275",
    "kind": "arxiv",
    "version": 1
  }
}