Pith Number

pith:O6UYSF66

pith:2013:O6UYSF665LT7D4OL7LI5D46TKN

not attested not anchored not stored refs pending

The Size of the Narrow-Line Emitting Region in the Seyfert 1 Galaxy NGC 5548 from Emission-Line Variability

B.M. Peterson, C.J. Grier, C.S. Kochanek, E. Dalla Bont\`a, E. Kilerci-Eser, G. De Rosa, K.D. Denney, M.C. Bentz, M. Vestergaard, R.W. Pogge, S. Ciroi

arxiv:1309.1468 v2 · 2013-09-05 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O6UYSF665LT7D4OL7LI5D46TKN}

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	2026-05-18T01:47:49.328015Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77a98917deeae7f1f1cbfad1d1f3d3535851788b01358231d4030ff064bbd80d

Aliases

arxiv: 1309.1468 · arxiv_version: 1309.1468v2 · doi: 10.48550/arxiv.1309.1468 · pith_short_12: O6UYSF665LT7 · pith_short_16: O6UYSF665LT7D4OL · pith_short_8: O6UYSF66

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/O6UYSF665LT7D4OL7LI5D46TKN \
  | 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: 77a98917deeae7f1f1cbfad1d1f3d3535851788b01358231d4030ff064bbd80d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf0f9ea5e171a769f7e3747da0381b1c0d3601da2ed890618bfdeccdef2020d3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-05T20:00:01Z",
    "title_canon_sha256": "88c146b4111bbd29ecdefbd16246d3f89731257fb24ef89a747a24ac93241895"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.1468",
    "kind": "arxiv",
    "version": 2
  }
}