Pith Number

pith:KQFDCZVC

pith:2025:KQFDCZVC2XR3GPFT5LIDRFYGNQ

not attested not anchored not stored refs pending

MeerKAT radio continuum imaging of nearby star-forming spirals in the NGC 6221, NGC 3256/3263, and NGC 2434 galaxy groups

B. S. Koribalski, J. English, J. Saponara, P. K. Humire

arxiv:2506.22382 v2 · 2025-06-27 · 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{KQFDCZVC2XR3GPFT5LIDRFYGNQ}

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	2026-07-05T12:03:28.176635Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

540a3166a2d5e3b33cb3ead03897066c2d598615a27ca5651312bb75f90dc5ec

Aliases

arxiv: 2506.22382 · arxiv_version: 2506.22382v2 · doi: 10.48550/arxiv.2506.22382 · pith_short_12: KQFDCZVC2XR3 · pith_short_16: KQFDCZVC2XR3GPFT · pith_short_8: KQFDCZVC

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/KQFDCZVC2XR3GPFT5LIDRFYGNQ \
  | 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: 540a3166a2d5e3b33cb3ead03897066c2d598615a27ca5651312bb75f90dc5ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62a59d29488bfa37c53a0b0b75ba13845d0fc2c67d5620996b82a7b2a356c0e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-06-27T16:49:13Z",
    "title_canon_sha256": "847a050cc95d3c612a4ea827ad7a5707c62c7ffb7ebe633be44870cdd9c07ca1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.22382",
    "kind": "arxiv",
    "version": 2
  }
}