Pith Number

pith:EQVZ7HE2

pith:2018:EQVZ7HE2RF4B36H3B6VPBONPKD

not attested not anchored not stored refs pending

A population of luminous accreting black holes with hidden mergers

Anna Weigel, Benny Trakhtenbrot, Chao-Ling Hung, Claudio Ricci, David B. Sanders, Ezequiel Treister, Jessica R. Lu, Kevin Schawinski, Laura Blecha, Lia F. Sartori, Michael J. Koss, Phillip Bernhard, Richard Mushotzky, Sylvain Veilleux

arxiv:1811.03641 v1 · 2018-11-08 · 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{EQVZ7HE2RF4B36H3B6VPBONPKD}

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	2026-05-18T00:01:12.476660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

242b9f9c9a89781df8fb0faaf0b9af50ef632ac2a11613c52b904ac7ad782cbe

Aliases

arxiv: 1811.03641 · arxiv_version: 1811.03641v1 · doi: 10.48550/arxiv.1811.03641 · pith_short_12: EQVZ7HE2RF4B · pith_short_16: EQVZ7HE2RF4B36H3 · pith_short_8: EQVZ7HE2

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/EQVZ7HE2RF4B36H3B6VPBONPKD \
  | 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: 242b9f9c9a89781df8fb0faaf0b9af50ef632ac2a11613c52b904ac7ad782cbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40b4cacea90a8d3a167fe0328e498f85f0b271dfaefebbf18788338158a2c7ad",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-08T19:02:29Z",
    "title_canon_sha256": "999fa9ca833580e19e24a4a1ff4e826ce9157d16014013d7719e98255282adb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03641",
    "kind": "arxiv",
    "version": 1
  }
}