Pith Number

pith:TPIQV4X6

pith:2018:TPIQV4X6NKFYJAFREAXFIJUVZU

not attested not anchored not stored refs pending

Low Surface Brightness Galaxy catalogue selected from the alpha.40-SDSS DR7 Survey and Tully-Fisher relation

Cheng cheng, Hong Wu, Ming Zhu, Wei Du, Yougang Wang

arxiv:1811.04569 v1 · 2018-11-12 · 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{TPIQV4X6NKFYJAFREAXFIJUVZU}

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	2026-05-18T00:00:17.593708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9bd10af2fe6a8b8480b1202e542695cd3615fee02d0e8a660e0b2ea2c9dc6c48

Aliases

arxiv: 1811.04569 · arxiv_version: 1811.04569v1 · doi: 10.48550/arxiv.1811.04569 · pith_short_12: TPIQV4X6NKFY · pith_short_16: TPIQV4X6NKFYJAFR · pith_short_8: TPIQV4X6

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/TPIQV4X6NKFYJAFREAXFIJUVZU \
  | 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: 9bd10af2fe6a8b8480b1202e542695cd3615fee02d0e8a660e0b2ea2c9dc6c48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47bef5cf514a61945832a4a556c32fea69c74e9500e215f0afed13491cce688a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-11-12T06:02:51Z",
    "title_canon_sha256": "d532af2fb31a8c9ecc52f162c5bac20362257a30f7b1a92bfc369901b9dcdc7f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04569",
    "kind": "arxiv",
    "version": 1
  }
}