Pith Number

pith:VF53Y7Z2

pith:2015:VF53Y7Z2JEFJ6ENJZJPTJCXUDQ

not attested not anchored not stored refs pending

Linking the fate of massive black hole binaries to the active galactic nuclei luminosity function

Andrea Merloni, Carmen Montuori, Massimo Dotti

arxiv:1502.03101 v1 · 2015-02-10 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VF53Y7Z2JEFJ6ENJZJPTJCXUDQ}

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	2026-05-18T01:41:03.901362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a97bbc7f3a490a9f11a9ca5f348af41c1196a3a45f548049fa59156d6dd0e196

Aliases

arxiv: 1502.03101 · arxiv_version: 1502.03101v1 · doi: 10.48550/arxiv.1502.03101 · pith_short_12: VF53Y7Z2JEFJ · pith_short_16: VF53Y7Z2JEFJ6ENJ · pith_short_8: VF53Y7Z2

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/VF53Y7Z2JEFJ6ENJZJPTJCXUDQ \
  | 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: a97bbc7f3a490a9f11a9ca5f348af41c1196a3a45f548049fa59156d6dd0e196

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd7cf99385d135a5a4305ca6444a81a9824cc31b05f3af823363a5c833d9e6cb",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-02-10T21:00:14Z",
    "title_canon_sha256": "08b81639dc97bcbb924b63c78d7f7747a8c21734ad591c1e7f167d7d51b77f07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.03101",
    "kind": "arxiv",
    "version": 1
  }
}