Pith Number

pith:IVAUQVU4

pith:2019:IVAUQVU4QTWTFVBO3YZV7ZMHWG

not attested not anchored not stored refs pending

Constraining cold accretion onto supermassive black holes: molecular gas in the cores of eight brightest cluster galaxies revealed by joint CO and CN absorption

A. B. Peck, A. C. Edge (1), A. C. Fabian, A. Vantyghem ((1) Centre for Extragalactic Astronomy, B. R. McNamara, C. O'Dea, C. Sarazin, Durham University), F. Combes, G. Ferland, G. R. Tremblay, H. Russell, J. B. R. Oonk, M. Donahue, M. Gaspari, M. N. Bremer, N. Nesvadba, P. Salom\'e, R. Mittal, S. A. Baum, S. Hamer, Tom Rose (1)

arxiv:1907.13526 v1 · 2019-07-31 · 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{IVAUQVU4QTWTFVBO3YZV7ZMHWG}

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	2026-07-04T23:55:48.414813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

454148569c84ed32d42ede335fe587b1ae3b8cfe6e53ef7992387fc506bdf94e

Aliases

arxiv: 1907.13526 · arxiv_version: 1907.13526v1 · doi: 10.48550/arxiv.1907.13526 · pith_short_12: IVAUQVU4QTWT · pith_short_16: IVAUQVU4QTWTFVBO · pith_short_8: IVAUQVU4

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/IVAUQVU4QTWTFVBO3YZV7ZMHWG \
  | 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: 454148569c84ed32d42ede335fe587b1ae3b8cfe6e53ef7992387fc506bdf94e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0caf889844e60b63220e9f28656c7d6ddfd6897d0137bde5a65cc9233597e218",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-07-31T14:35:15Z",
    "title_canon_sha256": "a5a19d4995cb0fa7644448ecc3ae584252dadb7386a9c4d18ac26c1d6fe4ba84"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.13526",
    "kind": "arxiv",
    "version": 1
  }
}