Pith Number

pith:7YAGQSM5

pith:2025:7YAGQSM54GLESD55KJDSDTOTT7

not attested not anchored not stored refs pending

The assembly of supermassive black holes at $z<1$ in early-type galaxies from scaling relations

Andreas Efstathiou, Athena Engholm, Carol Lonsdale, Chris Pearson, David L. Clements, Duncan Farrah, Evanthia Hatziminaoglou, Francesco Shankar, Gregory Tarle, Jose Afonso, Kevin Croker, Kiana Ejercito, Kirsten Jones, Lura K. Pitchford, Mark Lacy, Rogier Windhorst, Sara Petty

arxiv:2501.17227 v1 · 2025-01-28 · 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{7YAGQSM54GLESD55KJDSDTOTT7}

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	2026-07-05T10:06:49.716756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe0068499de196490fbd524721cdd39fc53003af71bc6257534a7506cb6783c0

Aliases

arxiv: 2501.17227 · arxiv_version: 2501.17227v1 · doi: 10.48550/arxiv.2501.17227 · pith_short_12: 7YAGQSM54GLE · pith_short_16: 7YAGQSM54GLESD55 · pith_short_8: 7YAGQSM5

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/7YAGQSM54GLESD55KJDSDTOTT7 \
  | 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: fe0068499de196490fbd524721cdd39fc53003af71bc6257534a7506cb6783c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3542aa139fddee65c3a6cb544c5d00c8cf10e9408dbf3a031ddcb45243fcd70c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-28T19:00:01Z",
    "title_canon_sha256": "a38b868b0b2582ad740179e1aff4392d161e3e29b70e7cdb33bc7c8bc7115c28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.17227",
    "kind": "arxiv",
    "version": 1
  }
}