Pith Number

pith:FZ4OQYCN

pith:2021:FZ4OQYCNJREK7T6FAPGGNUDAKZ

not attested not anchored not stored refs pending

The extreme properties of the nearby hyper-Eddington accreting Active Galactic Nucleus in IRAS 04416+1215

Alessia Tortosa, Claudio Ricci, Francesco Tombesi, Jian-Min Wang, Jinyi Shangguan, Kohei Inayoshi, Luis C. Ho, Pu Du, Ruancun Li

arxiv:2109.02573 v2 · 2021-09-06 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZ4OQYCNJREK7T6FAPGGNUDAKZ}

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.

Cited by

1 paper in Pith

Neutrinos from super-Eddington Seyfert galaxies

Receipt and verification

First computed	2026-07-05T03:32:17.124659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e78e8604d4c48afcfc503cc66d060566e168eeb761846e45597ba8e07ed3ce2

Aliases

arxiv: 2109.02573 · arxiv_version: 2109.02573v2 · doi: 10.48550/arxiv.2109.02573 · pith_short_12: FZ4OQYCNJREK · pith_short_16: FZ4OQYCNJREK7T6F · pith_short_8: FZ4OQYCN

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/FZ4OQYCNJREK7T6FAPGGNUDAKZ \
  | 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: 2e78e8604d4c48afcfc503cc66d060566e168eeb761846e45597ba8e07ed3ce2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "400e511911cab567e07a1bc26cf1fdea6b6eac0201c540bfe3149611f7025845",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-06T16:18:19Z",
    "title_canon_sha256": "ac50c4e1a7673d5afeeba68361ce0d88c7a355d8303f4905f68f6f9c3931dd3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02573",
    "kind": "arxiv",
    "version": 2
  }
}