Pith Number

pith:NUAZPF4A

pith:2024:NUAZPF4ATOYYSMDTXKBB54JZAT

not attested not anchored not stored refs pending

The comparison of an optical and X-ray counterpart of subparsec supermassive binary black holes

D. Borka, L. \v{C}. Popovi\'c, P. Jovanovi\'c, S. Simi\'c, V. Borka Jovanovi\'c

arxiv:2407.18871 v1 · 2024-07-26 · 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{NUAZPF4ATOYYSMDTXKBB54JZAT}

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	2026-07-05T08:48:55.761610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d019797809bb1893073ba821ef13904ef0aa01e704c371379c4e4433f02e0a0

Aliases

arxiv: 2407.18871 · arxiv_version: 2407.18871v1 · doi: 10.48550/arxiv.2407.18871 · pith_short_12: NUAZPF4ATOYY · pith_short_16: NUAZPF4ATOYYSMDT · pith_short_8: NUAZPF4A

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/NUAZPF4ATOYYSMDTXKBB54JZAT \
  | 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: 6d019797809bb1893073ba821ef13904ef0aa01e704c371379c4e4433f02e0a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e8679459dbc89e2643491444a14e036fb38d109ecfed5ff0742b5a31a9c411ca",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-07-26T17:04:49Z",
    "title_canon_sha256": "ed990b45299e55df0457a3cd75c5991c28fcf1146d4cc634848d69e2da90869e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.18871",
    "kind": "arxiv",
    "version": 1
  }
}