Pith Number

pith:NOLWI2YA

pith:2021:NOLWI2YALLOMDDGXFZGNJYICDT

not attested not anchored not stored refs pending

Low Surface Brightness Galaxies in z > 1 Galaxy Clusters: HST approaches the Progenitors of Local Ultra Diffuse Galaxies

Adam Muzzin, Aisha Bachmann, Gabriel Brammer, J\'er\'emy Fensch, Remco F.J. van der Burg

arxiv:2101.07799 v1 · 2021-01-19 · 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{NOLWI2YALLOMDDGXFZGNJYICDT}

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	2026-07-05T02:15:40.705403Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b97646b005adcc18cd72e4cd4e1021cc11028966c79c434953422b69a7ca091

Aliases

arxiv: 2101.07799 · arxiv_version: 2101.07799v1 · doi: 10.48550/arxiv.2101.07799 · pith_short_12: NOLWI2YALLOM · pith_short_16: NOLWI2YALLOMDDGX · pith_short_8: NOLWI2YA

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/NOLWI2YALLOMDDGXFZGNJYICDT \
  | 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: 6b97646b005adcc18cd72e4cd4e1021cc11028966c79c434953422b69a7ca091

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bb7d8053e255f93c74190a9d9b4dba66528762d2e5813abe73f491fdb455571",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-01-19T19:00:01Z",
    "title_canon_sha256": "cf6a459fb34b432a966a6926693aaac72edc97020512f23cb3a6228a49b0e804"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2101.07799",
    "kind": "arxiv",
    "version": 1
  }
}