Pith Number

pith:6DTH55OI

pith:2023:6DTH55OI5OEIYMHBZEGUEQVSDH

not attested not anchored not stored refs pending

NuSTAR Observations of Candidate Subparsec Binary Supermassive Black Holes

Alexei Vikhlinin, Barry McKernan, Daniel J. D'Orazio, Daniel Stern, Dominic J. Walton, Elias Kammoun, Hyunsung D. Jun, K.E.S. Ford, Matthew J. Graham, M. Lynne Saade, Murray Brightman, Ralph P. Kraft, S.G. Djorgovski, Thomas Connor, Zoltan Haiman

arxiv:2304.06144 v2 · 2023-04-12 · 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{6DTH55OI5OEIYMHBZEGUEQVSDH}

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	2026-07-05T08:01:30.035402Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0e67ef5c8eb888c30e1c90d4242b219dbd3655df97080d32aeba1961c0cc5be

Aliases

arxiv: 2304.06144 · arxiv_version: 2304.06144v2 · doi: 10.48550/arxiv.2304.06144 · pith_short_12: 6DTH55OI5OEI · pith_short_16: 6DTH55OI5OEIYMHB · pith_short_8: 6DTH55OI

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/6DTH55OI5OEIYMHBZEGUEQVSDH \
  | 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: f0e67ef5c8eb888c30e1c90d4242b219dbd3655df97080d32aeba1961c0cc5be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d227fbf90524dd805153ba0415436247f1f8311071e5fe5640ef0f35554a7bd",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-04-12T19:57:09Z",
    "title_canon_sha256": "3c6060b068a3913b504df4d8cbda8ec16de8dd4b579bb226191adc3bf97ad715"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.06144",
    "kind": "arxiv",
    "version": 2
  }
}