Pith Number

pith:XUJAJYFQ

pith:2020:XUJAJYFQMX5VEJFV3Q5DB43H7P

not attested not anchored not stored refs pending

A Sample of Edge-on HI-rich low-surface-brightness Galaxy Candidates in the 40% ALFALFA Catalog

Bing-Qing Zhang, Feng-Jie Lei, He-Yang Liu, Hong Wu, Min He, Pin-Song Zhao, Wei Du

arxiv:2004.13426 v1 · 2020-04-28 · 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{XUJAJYFQMX5VEJFV3Q5DB43H7P}

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	2026-07-05T01:11:47.034648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd1204e0b065fb5224b5dc3a30f367fbf024b2d5ad34f5a4210ff5dfc9b39cac

Aliases

arxiv: 2004.13426 · arxiv_version: 2004.13426v1 · doi: 10.48550/arxiv.2004.13426 · pith_short_12: XUJAJYFQMX5V · pith_short_16: XUJAJYFQMX5VEJFV · pith_short_8: XUJAJYFQ

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/XUJAJYFQMX5VEJFV3Q5DB43H7P \
  | 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: bd1204e0b065fb5224b5dc3a30f367fbf024b2d5ad34f5a4210ff5dfc9b39cac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ad9e47a13330213c07a82f15e9fdcc3b5a36e5fc10c509a2ecc72ce23cdf6df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-04-28T11:19:14Z",
    "title_canon_sha256": "6d12af70f4b8331986654075bb17425b0f741d3087e09a4a6602eabdacd57d40"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.13426",
    "kind": "arxiv",
    "version": 1
  }
}