Pith Number

pith:JKW2PKL2

pith:2021:JKW2PKL2GUBX27QAA54MC2FE7W

not attested not anchored not stored refs pending

HI in and behind the Hubble Frontier Field Clusters: A Deep MeerKAT Pilot Search out to $z\sim 0.5$

Danail Obreschkow, Ian Heywood, Roger Deane, Shilpa Ranchod, Tariq Blecher

arxiv:2111.10286 v1 · 2021-11-19 · 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{JKW2PKL2GUBX27QAA54MC2FE7W}

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	2026-07-05T03:42:54.495545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4aada7a97a35037d7e000778c168a4fd9d83c939ac5cd539f5acb62afc4a1e63

Aliases

arxiv: 2111.10286 · arxiv_version: 2111.10286v1 · doi: 10.48550/arxiv.2111.10286 · pith_short_12: JKW2PKL2GUBX · pith_short_16: JKW2PKL2GUBX27QA · pith_short_8: JKW2PKL2

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/JKW2PKL2GUBX27QAA54MC2FE7W \
  | 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: 4aada7a97a35037d7e000778c168a4fd9d83c939ac5cd539f5acb62afc4a1e63

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2af82b3a99afc360828db3c0dcc4b9bee79f2e463c41db7fdb4b2bae3d4710bb",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-11-19T15:52:25Z",
    "title_canon_sha256": "3a46c2f536acf6cab6ad1fa0d9cc0340a4022357861971eeeffe9dfa34853bc5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.10286",
    "kind": "arxiv",
    "version": 1
  }
}