Pith Number

pith:PN4FODB2

pith:2025:PN4FODB2JOB3E4X7V77W7GQJQA

not attested not anchored not stored refs pending

No evidence for excess AGN activity in recently quenched massive galaxies at cosmic noon

David Maltby, Elizabeth Taylor, Guillaume Hewitt, Jimi Harrold, Kate Rowlands, Katherine Alatalo, Maya Skarbinski, Omar Almaini, Pallavi Patil, Thomas de Lisle, Vivienne Wild

arxiv:2504.15342 v1 · 2025-04-21 · 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{PN4FODB2JOB3E4X7V77W7GQJQA}

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	2026-07-05T10:53:54.640772Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b78570c3a4b83b272ffafff6f9a0980200eb99dd350035ac431a0110cfd732b

Aliases

arxiv: 2504.15342 · arxiv_version: 2504.15342v1 · doi: 10.48550/arxiv.2504.15342 · pith_short_12: PN4FODB2JOB3 · pith_short_16: PN4FODB2JOB3E4X7 · pith_short_8: PN4FODB2

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/PN4FODB2JOB3E4X7V77W7GQJQA \
  | 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: 7b78570c3a4b83b272ffafff6f9a0980200eb99dd350035ac431a0110cfd732b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b1ec19c436d96f007f9be4221384b24103efed0a53a14a39dee79d1836b3e4b2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-21T18:00:03Z",
    "title_canon_sha256": "844a7b2531a657bd94cf7ccc7eaeda35c20a97b07191614f4862e12c2d1ae2d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.15342",
    "kind": "arxiv",
    "version": 1
  }
}