Pith Number

pith:3G2FXSQO

pith:2019:3G2FXSQOTTVAHLU37KJ2YWAPLP

not attested not anchored not stored refs pending

UGC 1378 -- a Milky Way-sized galaxy embedded in a giant low-surface brightness disc

Anastasia Kasparova, Anna Saburova, Daniel Fabricant, Igor Chilingarian, Ivan Katkov, Roman Uklein

arxiv:1908.11383 v1 · 2019-08-29 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3G2FXSQOTTVAHLU37KJ2YWAPLP}

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	2026-07-05T00:06:56.383578Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9b45bca0e9cea03ae9bfa93ac580f5bee5cfb5a657ff6238b4127ebb096e9bd

Aliases

arxiv: 1908.11383 · arxiv_version: 1908.11383v1 · doi: 10.48550/arxiv.1908.11383 · pith_short_12: 3G2FXSQOTTVA · pith_short_16: 3G2FXSQOTTVAHLU3 · pith_short_8: 3G2FXSQO

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/3G2FXSQOTTVAHLU37KJ2YWAPLP \
  | 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: d9b45bca0e9cea03ae9bfa93ac580f5bee5cfb5a657ff6238b4127ebb096e9bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "53d44ce79258badf94b3724e356e2ca46cb495fb53434ca798698dd217d4cad7",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-29T18:00:01Z",
    "title_canon_sha256": "90ffc74282955b952fefcff9b40a39d62592129bc03c51d795fcf50ea2d3024a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.11383",
    "kind": "arxiv",
    "version": 1
  }
}