Pith Number

pith:UGKWPCL6

pith:2018:UGKWPCL6XFMTE6ZO2WN3GAWUML

not attested not anchored not stored refs pending

New changing look case in NGC 1566

D. A. H. Buckley, E. S. Gorbovskoy, F. van Wyk, H. Winkler, N. V. Tyurina, S. S. Tsygankov, V. L. Oknyansky, V. M. Lipunov

arxiv:1811.06926 v3 · 2018-11-16 · 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{UGKWPCL6XFMTE6ZO2WN3GAWUML}

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

Strong X-ray Variability of I Zwicky 1: Obscuration from Clumpy Accretion-Disk Winds

Receipt and verification

First computed	2026-05-17T23:57:30.837694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a19567897eb959327b2ed59bb302d462edd99a3d4e0618f7b60c17fe0fbf55f8

Aliases

arxiv: 1811.06926 · arxiv_version: 1811.06926v3 · doi: 10.48550/arxiv.1811.06926 · pith_short_12: UGKWPCL6XFMT · pith_short_16: UGKWPCL6XFMTE6ZO · pith_short_8: UGKWPCL6

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/UGKWPCL6XFMTE6ZO2WN3GAWUML \
  | 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: a19567897eb959327b2ed59bb302d462edd99a3d4e0618f7b60c17fe0fbf55f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c26f628f3fbc7fed318d9f6123924185c34c059669577281b80acd437293a6fd",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-16T17:19:16Z",
    "title_canon_sha256": "1da298e4ea48899bfa3595a0d825c75c2e9ad7cf4a2ba674cbb7ac1b1e7b2b45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.06926",
    "kind": "arxiv",
    "version": 3
  }
}