Pith Number

pith:P7T5WB4J

pith:2024:P7T5WB4JPLBXLLKQ47CYTTA4WY

not attested not anchored not stored refs pending

Gas-rich Ultra-diffuse Galaxies Are Originated from High Specific Angular Momentum

Hong-Xin Zhang, Houjun Mo, Huijie Hu, Hui-Yuan Wang, Min He, Qi Guo, Wei Du, Yu Rong

arxiv:2404.00555 v1 · 2024-03-31 · 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{P7T5WB4JPLBXLLKQ47CYTTA4WY}

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	2026-07-05T08:02:53.344967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7fe7db07897ac375ad50e7c589cc1cb6168f02050764f7b3989ff0c9c32dbce0

Aliases

arxiv: 2404.00555 · arxiv_version: 2404.00555v1 · doi: 10.48550/arxiv.2404.00555 · pith_short_12: P7T5WB4JPLBX · pith_short_16: P7T5WB4JPLBXLLKQ · pith_short_8: P7T5WB4J

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/P7T5WB4JPLBXLLKQ47CYTTA4WY \
  | 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: 7fe7db07897ac375ad50e7c589cc1cb6168f02050764f7b3989ff0c9c32dbce0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "54ea5c684097229250c6f67741feebffa31b35514cfd6514d94468695cb5681b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2024-03-31T04:08:43Z",
    "title_canon_sha256": "4d6bf6e265796c5f850e31f4fceba6e6a33885675e529a00d1fe12b59375ea80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2404.00555",
    "kind": "arxiv",
    "version": 1
  }
}