Pith Number

pith:IABZ663Z

pith:2013:IABZ663ZA5VCGISEP6IBCFWOCF

not attested not anchored not stored refs pending

The story of Seyfert galaxy RE J2248-511: from intriguingly ultrasoft to unremarkably average

(2) Durham University, (3) SAAO, (4) MSSL/UCL), A. Breeveld (4), A. Lobban (1) ((1) University of Leicester, C. Done, C. Jin (2), E. Romero-Colmenero, K. Page (1), K. Wiersema, M. Page, Rhaana Starling (1), S. Potter (3)

arxiv:1311.3075 v1 · 2013-11-13 · astro-ph.GA · astro-ph.CO · 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{IABZ663ZA5VCGISEP6IBCFWOCF}

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	2026-05-18T01:46:31.648983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

40039f7b79076a2322447f901116ce116af78368d0c2ae9c3c19810171d1ee41

Aliases

arxiv: 1311.3075 · arxiv_version: 1311.3075v1 · doi: 10.48550/arxiv.1311.3075 · pith_short_12: IABZ663ZA5VC · pith_short_16: IABZ663ZA5VCGISE · pith_short_8: IABZ663Z

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/IABZ663ZA5VCGISEP6IBCFWOCF \
  | 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: 40039f7b79076a2322447f901116ce116af78368d0c2ae9c3c19810171d1ee41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb7e3504ecab1d604a14692dc5bf1d3bc6871abf0a89cb017f5fb4c16f75b73b",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2013-11-13T10:43:36Z",
    "title_canon_sha256": "69a88a71adfec2c71fffb5358e7a09ede58cdd3705bff957716f45ff4ebf13d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3075",
    "kind": "arxiv",
    "version": 1
  }
}