Pith Number

pith:6NUCQ5LO

pith:2023:6NUCQ5LOKHRVMSZDNNNCDT37HV

not attested not anchored not stored refs pending

Structure and Color Gradients of Ultra-diffuse Galaxies in Distant Massive Galaxy Clusters

Fengshan Liu, Hassen M. Yesuf, Hong Wu, Pinsong Zhao, Qifan Cui

arxiv:2310.20530 v1 · 2023-10-31 · 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{6NUCQ5LOKHRVMSZDNNNCDT37HV}

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	2026-07-05T07:07:31.582999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f36828756e51e3564b236b5a21cf7f3d6be67b2002648145b65dcc723dfcdc3f

Aliases

arxiv: 2310.20530 · arxiv_version: 2310.20530v1 · doi: 10.48550/arxiv.2310.20530 · pith_short_12: 6NUCQ5LOKHRV · pith_short_16: 6NUCQ5LOKHRVMSZD · pith_short_8: 6NUCQ5LO

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/6NUCQ5LOKHRVMSZDNNNCDT37HV \
  | 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: f36828756e51e3564b236b5a21cf7f3d6be67b2002648145b65dcc723dfcdc3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "369905fb80db0366b2050e18fdda331f8b5d2702733a826676ce30e7f6371cec",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2023-10-31T15:13:32Z",
    "title_canon_sha256": "7114359338d2f440605c5894e9bf238e94516c130bad93ac9751ee08a4903c4d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2310.20530",
    "kind": "arxiv",
    "version": 1
  }
}