Pith Number

pith:NBP4AW2B

pith:2022:NBP4AW2BJVK35JVU3DUXLCKGCJ

not attested not anchored not stored refs pending

The globular clusters and star formation history of the isolated, quiescent ultra-diffuse galaxy DGSAT I

Aaron J. Romanowsky, David Mart\'inez-Delgado, Duncan A. Forbes, Jean P. Brodie, Pieter G. van Dokkum, Roberto Abraham, Seppo Laine, Steven R. Janssens, Warrick J. Couch

arxiv:2209.09910 v1 · 2022-09-20 · 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{NBP4AW2BJVK35JVU3DUXLCKGCJ}

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	2026-07-05T05:03:31.093092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

685fc05b414d55bea6b4d8e97589461240218ee9111757159f0b8b77851c680c

Aliases

arxiv: 2209.09910 · arxiv_version: 2209.09910v1 · doi: 10.48550/arxiv.2209.09910 · pith_short_12: NBP4AW2BJVK3 · pith_short_16: NBP4AW2BJVK35JVU · pith_short_8: NBP4AW2B

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/NBP4AW2BJVK35JVU3DUXLCKGCJ \
  | 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: 685fc05b414d55bea6b4d8e97589461240218ee9111757159f0b8b77851c680c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5bb0a3b4f5c67e9e067c9e72717055c673949a0c60e0d896a3e8514632a7aa25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-09-20T18:00:00Z",
    "title_canon_sha256": "a18ca7746aa7dbb8160e9783c4c3a855deb837d93d77e793348cc3b7b158f0ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2209.09910",
    "kind": "arxiv",
    "version": 1
  }
}