Pith Number

pith:AOZK5HN2

pith:2025:AOZK5HN2FQBAH7GLN4RPNIVE2V

not attested not anchored not stored refs pending

Resolving the black hole sphere of influence in a hyper-luminous obscured quasar at redshift 4.6

Ana Posses, Andrew W. Blain, Andrey Vayner, Chao-Wei Tsai, Daniel Stern, Dejene Zewdie, Devika Shobhana, Guodong Li, Hyunsung D. Jun, Jingwen Wu, Jorge Gonz\'alez-L\'opez, Lee R. Martin, Mai Liao, Manuel Aravena, Manuel Solimano, Peter Eisenhardt, Roberto J. Assef, Rom\'an Fern\'andez Aranda, Tanio D\'iaz-Santos, Xiaofeng Li

arxiv:2504.13409 v1 · 2025-04-18 · 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{AOZK5HN2FQBAH7GLN4RPNIVE2V}

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	2026-07-05T10:50:54.469014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03b2ae9dba2c0203fccb6f22f6a2a4d54834add12b870342aa646d2e268d9edf

Aliases

arxiv: 2504.13409 · arxiv_version: 2504.13409v1 · doi: 10.48550/arxiv.2504.13409 · pith_short_12: AOZK5HN2FQBA · pith_short_16: AOZK5HN2FQBAH7GL · pith_short_8: AOZK5HN2

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/AOZK5HN2FQBAH7GLN4RPNIVE2V \
  | 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: 03b2ae9dba2c0203fccb6f22f6a2a4d54834add12b870342aa646d2e268d9edf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "908e630a68ab6a8b7faee1474566838fa5506ae164dee21eefc3a93893828681",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-18T02:12:09Z",
    "title_canon_sha256": "60558d27d294890155c262752b2505bd70ed3fcd04d9332db583860b6bab21cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.13409",
    "kind": "arxiv",
    "version": 1
  }
}