Pith Number

pith:F53SIV2I

pith:2019:F53SIV2IANICIZOV5TPXXIG67Z

not attested not anchored not stored refs pending

On The Role of Supermassive Black Holes in Quenching Star Formation in Local Central Galaxies

David J. Wilman, Fabio Fontanot, Matteo Fossati, Michaela Hirschmann, Nikhil Arora

arxiv:1908.04813 v1 · 2019-08-13 · 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{F53SIV2IANICIZOV5TPXXIG67Z}

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	2026-07-05T00:02:02.627801Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f7724574803502465d5ecdf7ba0defe59bd687fb73952c376c871c79ae742a3

Aliases

arxiv: 1908.04813 · arxiv_version: 1908.04813v1 · doi: 10.48550/arxiv.1908.04813 · pith_short_12: F53SIV2IANIC · pith_short_16: F53SIV2IANICIZOV · pith_short_8: F53SIV2I

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/F53SIV2IANICIZOV5TPXXIG67Z \
  | 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: 2f7724574803502465d5ecdf7ba0defe59bd687fb73952c376c871c79ae742a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9545f8713488163c224f5a0b6dd50b1820694cb443bf881265b5747cea2850f9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-13T18:30:09Z",
    "title_canon_sha256": "d4018e3f889d2d7925fa452034d85441b6eb9b680b2277846e99ba90fd44e05e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.04813",
    "kind": "arxiv",
    "version": 1
  }
}