Pith Number

pith:FF4YYRTG

pith:2019:FF4YYRTG3SAFK6EGZYKDPSS3PJ

not attested not anchored not stored refs pending

The Local Volume HI Survey (LVHIS)

\'Angel R. L\'opez-S\'anchez, B\"arbel S. Koribalski, Erwin de Blok, Jing Wang, Juergen Ott, Li Shao, Lister Staveley-Smith, O. Ivy Wong, Peter Kamphuis, Se-Heon Oh, Tobias Westmeier

arxiv:1904.09648 v1 · 2019-04-21 · 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{FF4YYRTG3SAFK6EGZYKDPSS3PJ}

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	2026-07-05T00:41:12.398991Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29798c4666dc80557886ce1437ca5b7a56e0c04c69e8a0fac3228772c1115b6d

Aliases

arxiv: 1904.09648 · arxiv_version: 1904.09648v1 · doi: 10.48550/arxiv.1904.09648 · pith_short_12: FF4YYRTG3SAF · pith_short_16: FF4YYRTG3SAFK6EG · pith_short_8: FF4YYRTG

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/FF4YYRTG3SAFK6EGZYKDPSS3PJ \
  | 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: 29798c4666dc80557886ce1437ca5b7a56e0c04c69e8a0fac3228772c1115b6d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3563915fa59cc519998e292da636034a665a8a6ff0dc2ac9ee598cfa132a7f95",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-21T19:19:55Z",
    "title_canon_sha256": "cd26c28c44e3a161f5b7a57650dcc3cc648b88cb982f18d37c211a1c5db87853"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.09648",
    "kind": "arxiv",
    "version": 1
  }
}