Pith Number

pith:BV2F3B2J

pith:2025:BV2F3B2JEYTZ6ZOP4GFGT7ULYA

not attested not anchored not stored refs pending

The Centre of Attention: a Powerful Radio Galaxy Pinpoints a NIR-Dark Protocluster at z~3.9

A. Gupta, A. J. Hedge, D. Stern, G. Noirot, J. Afonso, J. W. Broderick, L. Ighina, M. Lehnert, N. Seymour, R. J. Turner, S. Shabala

arxiv:2506.04747 v2 · 2025-06-05 · 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{BV2F3B2JEYTZ6ZOP4GFGT7ULYA}

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	2026-07-05T11:20:12.923334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d745d874926279f65cfe18a69fe8bc03adfc4a86ec62491749958f8bd399442

Aliases

arxiv: 2506.04747 · arxiv_version: 2506.04747v2 · doi: 10.48550/arxiv.2506.04747 · pith_short_12: BV2F3B2JEYTZ · pith_short_16: BV2F3B2JEYTZ6ZOP · pith_short_8: BV2F3B2J

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/BV2F3B2JEYTZ6ZOP4GFGT7ULYA \
  | 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: 0d745d874926279f65cfe18a69fe8bc03adfc4a86ec62491749958f8bd399442

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d6db4e7a63cd2da9bcfd41cbbb561dba1fb94bb27e9227896883c04e93aec336",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-06-05T08:31:28Z",
    "title_canon_sha256": "8ce5db86b62c84dd0a08ac47acd2845f1f727dfca35dbf5660f33064cc89964f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.04747",
    "kind": "arxiv",
    "version": 2
  }
}