Pith Number

pith:WKF27RFX

pith:2022:WKF27RFXCYO4GCKHLBDVPEVRCE

not attested not anchored not stored refs pending

The extended HI halo of NGC 4945 as seen by MeerKAT

Athanaseus J. T. Ramaila, Benjamin V. Hugo, Brenda Namumba, B. S. Koribalski, Claude Carignan, Dane Kleiner, D\'aniel Cs. Moln\'ar, Eric Maina, Filippo M. Maccagni, Francesca Loi, Gyula I. G. J\'ozsa, Kshitij Thorat, Lexy A. L. Andati, Marcellin Atemkeng, Mpati Ramatsoku, Oleg M. Smirnov, Paolo Serra, Peter Kamphuis, Ralf-J\"urgen Dettmar, Roger Ianjamasimanana, Simon Perkins, Sphesihle Makhathini, W. J. G. de Blok

arxiv:2204.00637 v1 · 2022-04-01 · 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{WKF27RFXCYO4GCKHLBDVPEVRCE}

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	2026-07-05T04:13:55.851697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b28bafc4b7161dc3094758475792b11135e140822935e49464d0d073b8ff0af0

Aliases

arxiv: 2204.00637 · arxiv_version: 2204.00637v1 · doi: 10.48550/arxiv.2204.00637 · pith_short_12: WKF27RFXCYO4 · pith_short_16: WKF27RFXCYO4GCKH · pith_short_8: WKF27RFX

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/WKF27RFXCYO4GCKHLBDVPEVRCE \
  | 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: b28bafc4b7161dc3094758475792b11135e140822935e49464d0d073b8ff0af0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b42bf8ea6ba1b6c3546b0f0b601cc5abee53669144336001cb6dbbeaa06f3336",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-04-01T18:00:03Z",
    "title_canon_sha256": "acdf4960f0ef25906dea6624342e4d56a080f7644a581b8f54304b8ae565ffa0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.00637",
    "kind": "arxiv",
    "version": 1
  }
}