Pith Number

pith:GNIPSJTQ

pith:2019:GNIPSJTQ4J6UUUR64SIG3AH3C2

not attested not anchored not stored refs pending

Tracing the AGN/X-ray Binary Analogy with Light Curves of Individual Changing-Look AGN

Chelsea L. MacLeod, Daryl Haggard, Jessie C. Runnoe, John J. Ruan, Malgosia A. Sobolewska, Michael Eracleous, Paul J. Green, Scott F. Anderson

arxiv:1909.04676 v2 · 2019-09-10 · 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{GNIPSJTQ4J6UUUR64SIG3AH3C2}

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

Changing Look AGN: An X-ray Look

Receipt and verification

First computed	2026-07-05T00:04:11.084428Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3350f92670e27d4a523ee4906d80fb168837c82c13f243fbd202a41eba4b1e80

Aliases

arxiv: 1909.04676 · arxiv_version: 1909.04676v2 · doi: 10.48550/arxiv.1909.04676 · pith_short_12: GNIPSJTQ4J6U · pith_short_16: GNIPSJTQ4J6UUUR6 · pith_short_8: GNIPSJTQ

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/GNIPSJTQ4J6UUUR64SIG3AH3C2 \
  | 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: 3350f92670e27d4a523ee4906d80fb168837c82c13f243fbd202a41eba4b1e80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecbf06ace162c940bec26cef7be3f5d1ecf618a909ac7e8592014375e00fb61a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-09-10T18:00:03Z",
    "title_canon_sha256": "8e9ed33f4b5dbe254658f56e36ca86191e61bacb4cfedb152580dcf8c7af234c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04676",
    "kind": "arxiv",
    "version": 2
  }
}