Pith Number

pith:I7HKU4XM

pith:2020:I7HKU4XM3N2JRIGIVUW6VB7WNT

not attested not anchored not stored refs pending

Unveiling sub-parsec supermassive black hole binary candidates in active galactic nuclei

Alberto Sesana, Alessandra Zaino, Claudia Cicone, Cristian Vignali, Filippo Ambrosino, Gabriele A. Matzeu, Lucia Ballo, Massimo Dotti, Paola Severgnini, Roberto Della Ceca, Roberto Serafinelli, Valentina Braito, Valentina La Parola, Vittoria E. Gianolli

arxiv:2009.06662 v1 · 2020-09-14 · 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{I7HKU4XM3N2JRIGIVUW6VB7WNT}

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	2026-07-05T01:42:46.120981Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47ceaa72ecdb7498a0c8ad2dea87f66cf7c630d1332cdd1694f35e591dcf5aea

Aliases

arxiv: 2009.06662 · arxiv_version: 2009.06662v1 · doi: 10.48550/arxiv.2009.06662 · pith_short_12: I7HKU4XM3N2J · pith_short_16: I7HKU4XM3N2JRIGI · pith_short_8: I7HKU4XM

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/I7HKU4XM3N2JRIGIVUW6VB7WNT \
  | 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: 47ceaa72ecdb7498a0c8ad2dea87f66cf7c630d1332cdd1694f35e591dcf5aea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a7100d62643bf8ea17baf509bf942ae1e5b20ab4e4c3772ba70f9842ef09797",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2020-09-14T18:01:01Z",
    "title_canon_sha256": "a46a17599258a16af909913eb5a8149a6b4226239465799bb15268ace8a1597d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.06662",
    "kind": "arxiv",
    "version": 1
  }
}