Pith Number

pith:FCH7LPHO

pith:2024:FCH7LPHONIWGVSDJHBBJ3FMBSM

not attested not anchored not stored refs pending

Discovery of a hyperluminous quasar at z = 1.62 with Eddington ratio > 3 in the eFEDS field confirmed by KOOLS-IFU on Seimei Telescope

Aika Oki, Anri Yanagawa, Itsuki Dosaka, Keito Masu, Kohei Shibata, Masatoshi Imanishi, Masayuki Tanaka, Naomi Ota, Neiro Kurokawa, Satoshi Yamada, Sayaka Takeuchi, Seira Kobayashi, Sorami Soga, Takumi Kakimoto, Tohru Nagao, Wei-hao Wang, Yoshihiro Ueda, Yoshiki Toba, Yukana Tsujita, Zhen-Kai Gao

arxiv:2408.08498 v1 · 2024-08-16 · 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{FCH7LPHONIWGVSDJHBBJ3FMBSM}

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	2026-07-05T08:55:55.896496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

288ff5bcee6a2c6ac86938429d9581931576885d59cbabb45b1e9e27faf5419f

Aliases

arxiv: 2408.08498 · arxiv_version: 2408.08498v1 · doi: 10.48550/arxiv.2408.08498 · pith_short_12: FCH7LPHONIWG · pith_short_16: FCH7LPHONIWGVSDJ · pith_short_8: FCH7LPHO

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/FCH7LPHONIWGVSDJHBBJ3FMBSM \
  | 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: 288ff5bcee6a2c6ac86938429d9581931576885d59cbabb45b1e9e27faf5419f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d899ed248c61c0f3b68655a527406c9fb5441bdd237c892ad4c3ad63a3082c54",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-08-16T02:49:48Z",
    "title_canon_sha256": "72cba4da6127fe4e179a8a07dd2c2cc1cac984f3f218e43acf8ea606a4b7cbb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2408.08498",
    "kind": "arxiv",
    "version": 1
  }
}