Pith Number

pith:XMHQWZPZ

pith:2022:XMHQWZPZRV7J4MV3HHBYFPALXI

not attested not anchored not stored refs pending

The bulge masses of TDE host galaxies and their scaling with black hole mass

Daniel Lanning, Matt Nicholl, Paige Ramsden, Sean L. McGee

arxiv:2201.02650 v2 · 2022-01-07 · astro-ph.HE · astro-ph.CO · astro-ph.GA · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMHQWZPZRV7J4MV3HHBYFPALXI}

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	2026-07-05T04:48:09.885818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb0f0b65f98d7e9e32bb39c382bc0bba34f2970000de8d452c8e208af6c03ab0

Aliases

arxiv: 2201.02650 · arxiv_version: 2201.02650v2 · doi: 10.48550/arxiv.2201.02650 · pith_short_12: XMHQWZPZRV7J · pith_short_16: XMHQWZPZRV7J4MV3 · pith_short_8: XMHQWZPZ

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/XMHQWZPZRV7J4MV3HHBYFPALXI \
  | 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: bb0f0b65f98d7e9e32bb39c382bc0bba34f2970000de8d452c8e208af6c03ab0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a40fd46f1f3ad926d4a41034fd10f44202fc65dde886ac444e36c79e9eb9730",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2022-01-07T19:17:56Z",
    "title_canon_sha256": "52bd830f028dffeefa1eed4ad8a19b7a58aab14112acced9bb40e87e2af6d3cf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.02650",
    "kind": "arxiv",
    "version": 2
  }
}