Pith Number

pith:LH4MSOYH

pith:2021:LH4MSOYHXDI75KLXO6VJMJREGX

not attested not anchored not stored refs pending

H$\alpha$ Reverberation Mapping of the Intermediate-Mass Active Galactic Nucleus in NGC 4395

Aaron J. Barth, Alexei V. Filippenko, David J. Sand, Diego Gonz\'alez-Buitrago, Donghoon Son, Douglas C. Leonard, Edmund Hodges-Kluck, Elena Gallo, Hojin Cho, Hyun-Il Sung, Jaehyuk Geum, Jaejin Shin, John C. Horst, Jong-Hak Woo, Kayhan G\"ultekin, Matthew A. Malkan, Minjin Kim, Peter R. Williams, Raymond P. Remigio, Seong Hyeon Hwang, Stephen F. Armen, Taewoo Kim, Tommaso Treu, Vardha N. Bennert, Vivian U, Wanjin Cho, Wonseok Kang

arxiv:2108.07756 v1 · 2021-08-17 · 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{LH4MSOYHXDI75KLXO6VJMJREGX}

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	2026-07-05T03:32:14.371049Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

59f8c93b07b8d1fea97777aa96262435e011b7b740b2ad75fd369abe0b99b19c

Aliases

arxiv: 2108.07756 · arxiv_version: 2108.07756v1 · doi: 10.48550/arxiv.2108.07756 · pith_short_12: LH4MSOYHXDI7 · pith_short_16: LH4MSOYHXDI75KLX · pith_short_8: LH4MSOYH

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/LH4MSOYHXDI75KLXO6VJMJREGX \
  | 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: 59f8c93b07b8d1fea97777aa96262435e011b7b740b2ad75fd369abe0b99b19c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08b935ab194746bf0b901efdff076ed71c76c66f74a4b384421fdd3bea85ce08",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-08-17T17:01:26Z",
    "title_canon_sha256": "bbdfc57547811f5f2ccbd41cd26f9aaa47e9aa08d7ac28b19cd9c4eac0253360"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.07756",
    "kind": "arxiv",
    "version": 1
  }
}