Pith Number

pith:WR57COOC

pith:2023:WR57COOCPJ5TLNZ3F5F4H7KMTC

not attested not anchored not stored refs pending

Supermassive black holes in a mass-limited galaxy sample

Chelsea Spengler, David Blyth, Holger Baumgardt, Joel Pfeffer, Laura Ferrarese, Michael J. Drinkwater, Nora L\"uetzgendorf, Patrick C\^ot\'e, Sarah Sweet, Smriti Mahajan, Zachary Byrne

arxiv:2311.13747 v1 · 2023-11-23 · 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{WR57COOCPJ5TLNZ3F5F4H7KMTC}

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	2026-07-05T07:16:07.251708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b47bf139c27a7b35b73b2f4bc3fd4c98a68c794a8c99ad69b1450001a3785f9b

Aliases

arxiv: 2311.13747 · arxiv_version: 2311.13747v1 · doi: 10.48550/arxiv.2311.13747 · pith_short_12: WR57COOCPJ5T · pith_short_16: WR57COOCPJ5TLNZ3 · pith_short_8: WR57COOC

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/WR57COOCPJ5TLNZ3F5F4H7KMTC \
  | 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: b47bf139c27a7b35b73b2f4bc3fd4c98a68c794a8c99ad69b1450001a3785f9b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "658925ce484cf8fe5368c8e67830be3e73428d9b4163f39ed77b9f097198f848",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-11-23T00:34:19Z",
    "title_canon_sha256": "10d82afe4901de4f5ca07a2fce985e2d4b3b371055f7b0498b01374c32aacdc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2311.13747",
    "kind": "arxiv",
    "version": 1
  }
}