Pith Number

pith:V6IFVGJB

pith:2015:V6IFVGJBMDED3EPXU4CRC6BJPL

not attested not anchored not stored refs pending

Twin SMBH candidates in the BCG of RBS 797

Elisabetta Liuzzo, Gabriele Giovannini, Luigina Feretti, Marcello Giroletti, Myriam Gitti

arxiv:1504.02681 v1 · 2015-04-10 · astro-ph.GA · 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{V6IFVGJBMDED3EPXU4CRC6BJPL}

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	2026-05-18T02:19:06.867354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af905a992160c83d91f7a7051178297acabc49793d1fdbf4549363f0f9381614

Aliases

arxiv: 1504.02681 · arxiv_version: 1504.02681v1 · doi: 10.48550/arxiv.1504.02681 · pith_short_12: V6IFVGJBMDED · pith_short_16: V6IFVGJBMDED3EPX · pith_short_8: V6IFVGJB

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/V6IFVGJBMDED3EPXU4CRC6BJPL \
  | 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: af905a992160c83d91f7a7051178297acabc49793d1fdbf4549363f0f9381614

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b226ad35ed79b158ec14a2cc4d29ee5e2cba4b477fc3dab21058f701365365f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-10T13:54:22Z",
    "title_canon_sha256": "10d8c936d50c594d751b4df2929dcc3e53f7f752206b67e11704f51e36943373"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.02681",
    "kind": "arxiv",
    "version": 1
  }
}