Pith Number

pith:XZHF4DFK

pith:2019:XZHF4DFKZ3SVY5GXHCGC2QSPKI

not attested not anchored not stored refs pending

Emission Signatures from Sub-parsec Binary Supermassive Black Holes III: Comparison of Models with Observations

(2) University of Michigan, 3), (3) Vanderbilt University, (4) Pennsylvania State University, (5) Las Cumbres Observatory), Jessie C. Runnoe (2, Khai Nguyen (1), Michael Eracleous (4), Steinn Sigurdsson (4), Tamara Bogdanovic (1), Todd Boroson (5) ((1) Georgia Institute of Technology

arxiv:1908.01799 v2 · 2019-08-05 · astro-ph.HE · astro-ph.GA · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZHF4DFKZ3SVY5GXHCGC2QSPKI}

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	2026-07-05T01:04:00.660713Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be4e5e0caacee55c74d7388c2d424f5232dd2a6c5edc336cf4506db88f1ce027

Aliases

arxiv: 1908.01799 · arxiv_version: 1908.01799v2 · doi: 10.48550/arxiv.1908.01799 · pith_short_12: XZHF4DFKZ3SV · pith_short_16: XZHF4DFKZ3SVY5GX · pith_short_8: XZHF4DFK

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/XZHF4DFKZ3SVY5GXHCGC2QSPKI \
  | 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: be4e5e0caacee55c74d7388c2d424f5232dd2a6c5edc336cf4506db88f1ce027

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "037985de0d1f59caec7374142224384a89d81d2842a590a7a3fd0c4ea6b8bc99",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-05T18:41:37Z",
    "title_canon_sha256": "5913ab0b55afb89c19690f76413ea213346e772536765d0a2b5ac11e1acc09aa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.01799",
    "kind": "arxiv",
    "version": 2
  }
}