Pith Number

pith:CQTH6QLS

pith:2019:CQTH6QLSDVJJCRFNFSM7LPC4HL

not attested not anchored not stored refs pending

Edge-on HI-bearing ultra diffuse galaxy candidates in the 40% ALFALFA catalog

Feng-Jie Lei, Hong Wu, James Wicker, Ji-Feng Liu, Min He, Pin-Song Zhao, Wei Du

arxiv:1907.10438 v2 · 2019-07-24 · 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{CQTH6QLSDVJJCRFNFSM7LPC4HL}

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	2026-05-17T23:39:34.979976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14267f41721d529144ad2c99f5bc5c3ac05b62917af205ae079fbef3a014b542

Aliases

arxiv: 1907.10438 · arxiv_version: 1907.10438v2 · doi: 10.48550/arxiv.1907.10438 · pith_short_12: CQTH6QLSDVJJ · pith_short_16: CQTH6QLSDVJJCRFN · pith_short_8: CQTH6QLS

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/CQTH6QLSDVJJCRFNFSM7LPC4HL \
  | 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: 14267f41721d529144ad2c99f5bc5c3ac05b62917af205ae079fbef3a014b542

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2adf5e4c1c02e296db9f3b0562a58037726b743f0a9212ad7162ce3c46901ca6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-07-24T13:31:52Z",
    "title_canon_sha256": "5f20f6e34afcde0df4b9ef686dd62dff23f11afd05c061dc3c7d4f9436c25125"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.10438",
    "kind": "arxiv",
    "version": 2
  }
}