Pith Number

pith:MMX2JR7F

pith:2011:MMX2JR7F6CSAYOOJHVYDNVWXH5

not attested not anchored not stored refs pending

Observability of Dual Active Galactic Nuclei in Merging Galaxies

Jillian Bellovary, Lucio Mayer, Marta Volonteri, Massimo Dotti, Sandor Van Wassenhove, Simone Callegari

arxiv:1111.0223 v2 · 2011-11-01 · 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{MMX2JR7F6CSAYOOJHVYDNVWXH5}

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	2026-05-18T04:01:01.712732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

632fa4c7e5f0a40c39c93d7036d6d73f6e7a855ff118bc6171021a5477f77075

Aliases

arxiv: 1111.0223 · arxiv_version: 1111.0223v2 · doi: 10.48550/arxiv.1111.0223 · pith_short_12: MMX2JR7F6CSA · pith_short_16: MMX2JR7F6CSAYOOJ · pith_short_8: MMX2JR7F

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/MMX2JR7F6CSAYOOJHVYDNVWXH5 \
  | 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: 632fa4c7e5f0a40c39c93d7036d6d73f6e7a855ff118bc6171021a5477f77075

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54b1d65a2266860d704efc2b213f55f4b1a9df272d1aaa5ed30b8d17fd75ccb3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-11-01T15:38:36Z",
    "title_canon_sha256": "46e0cc9ad71ce725492f52e3191b0bcb7fa1d0c14d2d1f93003dd1f55e7c1dfa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1111.0223",
    "kind": "arxiv",
    "version": 2
  }
}