Pith Number

pith:O32IBX7Z

pith:2019:O32IBX7ZV5HIE4CEOGLFJHPO6V

not attested not anchored not stored refs pending

A New Sample of (Wandering) Massive Black Holes in Dwarf Galaxies from High Resolution Radio Observations

Amy Reines, James Condon, Jenny Greene, Jeremy Darling

arxiv:1909.04670 v1 · 2019-09-10 · 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{O32IBX7ZV5HIE4CEOGLFJHPO6V}

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.

Cited by

1 paper in Pith

Tracing black hole and galaxy growth across environments since cosmic noon

Receipt and verification

First computed	2026-07-05T00:38:04.290361Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76f480dff9af4e8270447196549deef56245c5046714f0fb5582b0652e5cabc3

Aliases

arxiv: 1909.04670 · arxiv_version: 1909.04670v1 · doi: 10.48550/arxiv.1909.04670 · pith_short_12: O32IBX7ZV5HI · pith_short_16: O32IBX7ZV5HIE4CE · pith_short_8: O32IBX7Z

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/O32IBX7ZV5HIE4CEOGLFJHPO6V \
  | 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: 76f480dff9af4e8270447196549deef56245c5046714f0fb5582b0652e5cabc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a7124d45285c9d01fefef8022e5c9967403b3870db1096d3a80d5e713bcccbe",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-09-10T18:00:01Z",
    "title_canon_sha256": "488779aed2b1d73b60e92cae593afc0eb79b9295e576bf14c19e742cf4364775"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.04670",
    "kind": "arxiv",
    "version": 1
  }
}