Pith Number

pith:KSMDYT3L

pith:2021:KSMDYT3L3GR2SAFW5AOWN4XTAZ

not attested not anchored not stored refs pending

Ultra diffuse galaxies in the MATLAS low-to-moderate density fields

Abhishek Chougule, Francine R. Marleau, Jeremy Fensch, Melina Poulain, Michal Bilek, Oliver Mueller, Patrick R. Durrell, Pierre-Alain Duc, Rebecca Habas, Ruben Sanchez-Janssen, Sanjaya Paudel, Sungsoon Lim, Syeda Lammim Ahad

arxiv:2109.13173 v1 · 2021-09-27 · 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{KSMDYT3L3GR2SAFW5AOWN4XTAZ}

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	2026-07-05T03:26:08.146889Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54983c4f6bd9a3a900b6e81d66f2f3064434ad7bffdab8835816e5308257edb2

Aliases

arxiv: 2109.13173 · arxiv_version: 2109.13173v1 · doi: 10.48550/arxiv.2109.13173 · pith_short_12: KSMDYT3L3GR2 · pith_short_16: KSMDYT3L3GR2SAFW · pith_short_8: KSMDYT3L

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/KSMDYT3L3GR2SAFW5AOWN4XTAZ \
  | 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: 54983c4f6bd9a3a900b6e81d66f2f3064434ad7bffdab8835816e5308257edb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7d93d09acd986c8e57ced09069590da87c7a315e63d6c25b26f53854d4d46176",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-27T16:33:13Z",
    "title_canon_sha256": "01e1f6ecb7b48c74baff982d7777530317bc7e287105eade48412dd0042984f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.13173",
    "kind": "arxiv",
    "version": 1
  }
}