Pith Number

pith:YTS2TBCW

pith:2025:YTS2TBCWXS42KVDNKRTGOT4DSC

not attested not anchored not stored refs pending

Further Evidence for a Direct-Collapse Origin of the Supermassive Black Hole at the Center of the Infinity Galaxy

Connor Jennings, Gabriel Brammer, Imad Pasha, Josephine F. W. Baggen, Pieter van Dokkum

arxiv:2506.15619 v2 · 2025-06-18 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YTS2TBCWXS42KVDNKRTGOT4DSC}

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	2026-07-05T11:53:04.471596Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4e5a98456bcb9a5546d5466674f8390805340e4b3742789e756dbb7f85edd21

Aliases

arxiv: 2506.15619 · arxiv_version: 2506.15619v2 · doi: 10.48550/arxiv.2506.15619 · pith_short_12: YTS2TBCWXS42 · pith_short_16: YTS2TBCWXS42KVDN · pith_short_8: YTS2TBCW

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/YTS2TBCWXS42KVDNKRTGOT4DSC \
  | 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: c4e5a98456bcb9a5546d5466674f8390805340e4b3742789e756dbb7f85edd21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "618a5a8c41e7667a4ed778f56595aabe9a0e1507f2d42cb16169bf0026fdb33b",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-06-18T16:51:21Z",
    "title_canon_sha256": "566ecdd3a488c648dfe9d88a1549e9e114175bee480446252e8312e5f6aa27f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.15619",
    "kind": "arxiv",
    "version": 2
  }
}