Pith Number

pith:QAJC4LZR

pith:2019:QAJC4LZRZBDBYKN5G2MSX2GPPO

not attested not anchored not stored refs pending

Elliptical Galaxy in the Making: The Dual Active Galactic Nuclei and Metal-enriched Halo of Mrk 273

Claire E. Max, David Sanders, David S. N. Rupke, Francesco Tombesi, Kazushi Iwasawa, Marcio Melendez, Stacy Teng, Sylvain Veilleux, Vivian U, Weizhe Liu

arxiv:1901.04118 v1 · 2019-01-14 · 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{QAJC4LZRZBDBYKN5G2MSX2GPPO}

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	2026-05-17T23:53:22.888883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80122e2f31c8461c29bd36992be8cf7bbe9a84f7d738ede80f080b520693a26a

Aliases

arxiv: 1901.04118 · arxiv_version: 1901.04118v1 · doi: 10.48550/arxiv.1901.04118 · pith_short_12: QAJC4LZRZBDB · pith_short_16: QAJC4LZRZBDBYKN5 · pith_short_8: QAJC4LZR

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/QAJC4LZRZBDBYKN5G2MSX2GPPO \
  | 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: 80122e2f31c8461c29bd36992be8cf7bbe9a84f7d738ede80f080b520693a26a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce67b536b8353490d1794576b6fdb7d305bfd5a0c34823ebb3c5adaed28938df",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-01-14T04:00:34Z",
    "title_canon_sha256": "728fc4e24244ee013b4530c40507c246eb9e46c22d5aee79c876ba71e7cf8409"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.04118",
    "kind": "arxiv",
    "version": 1
  }
}