Pith Number

pith:QTKN7TYZ

pith:2023:QTKN7TYZGVBUTLM4LQBSGCOW6G

not attested not anchored not stored refs pending

A re-emerging bright soft-X-ray state of the changing-look Active Galactic Nucleus 1ES~1927+654: a multi-wavelength view

Agniva Roychowdhury, Anna Lia Longinotti, Brendan O Connor, Ehud Behar, Eileen Meyer, Elisabeta Lusso, Erica Hammerstein, Fabio La Franca, Federica Ricci, Francesca Panessa, J. A. Acosta Pulido, Jincen Jose, Josefa Becerra Gonzalez, Krisztina Eva Gabanyi, Luigi C. Gallo, Matt Nicholl, Mitchell C. Begelman, Nicolas Scepi, Ritesh Ghosh, Sabyasachi Chattopadhyay, Samantha Oates, S. Bradley Cenko, Shivangi Pandey, Sibasish Laha, Stefano Bianchi, Suvendu Rakshit, Xiaolong Yang

arxiv:2308.03602 v2 · 2023-08-07 · 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{QTKN7TYZGVBUTLM4LQBSGCOW6G}

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	2026-07-05T06:40:16.603351Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84d4dfcf19354349ad9c5c032309d6f1bfbae531067dee2caa8f177c218b03d7

Aliases

arxiv: 2308.03602 · arxiv_version: 2308.03602v2 · doi: 10.48550/arxiv.2308.03602 · pith_short_12: QTKN7TYZGVBU · pith_short_16: QTKN7TYZGVBUTLM4 · pith_short_8: QTKN7TYZ

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/QTKN7TYZGVBUTLM4LQBSGCOW6G \
  | 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: 84d4dfcf19354349ad9c5c032309d6f1bfbae531067dee2caa8f177c218b03d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f3b119cc4ddd0fec47a91218986d22709a14d41e9aa79215959fd0089d427f1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-08-07T14:05:15Z",
    "title_canon_sha256": "22b8684e239c13a356eb19b4b8218dd39b394fae7af03d5838799617f5d6e764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2308.03602",
    "kind": "arxiv",
    "version": 2
  }
}