Pith Number

pith:4RMECMCA

pith:2026:4RMECMCAM2JBVTPQPOX4BYGUSH

not attested not anchored not stored refs pending

A quasar hatching from a buried red phase at z = 3.7

Andrew J. Bunker, Christopher N. A. Willmer, Eiichi Egami, Feige Wang, Fengwu Sun, Francesco D'Eugenio, George D. Becker, George H. Rieke, Ignas Juod\v{z}balis, Jianwei Lyu, Jinyi Yang, Junyu Zhang, Marcia J. Rieke, Peixin Zhu, Pierluigi Rinaldi, Roberto Maiolino, Weizhe Liu, Xiangyu Jin, Xiaohui Fan, Yang Sun, Yongda Zhu, Yunjing Wu, Zheng Ma, Zhiyuan Ji

arxiv:2607.22966 v1 · 2026-07-25 · 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{4RMECMCAM2JBVTPQPOX4BYGUSH}

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	2026-07-28T00:22:04.796796Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e45841304066921acdf07bafc0e0d491cf9c0b3e49e45452e776a8473f8cf062

Aliases

arxiv: 2607.22966 · arxiv_version: 2607.22966v1 · doi: 10.48550/arxiv.2607.22966 · pith_short_12: 4RMECMCAM2JB · pith_short_16: 4RMECMCAM2JBVTPQ · pith_short_8: 4RMECMCA

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/4RMECMCAM2JBVTPQPOX4BYGUSH \
  | 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: e45841304066921acdf07bafc0e0d491cf9c0b3e49e45452e776a8473f8cf062

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a0e5a459b42766faa5230ac672510dd60a47847c6298d2d691ed2799b67a2ce",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-07-25T00:13:12Z",
    "title_canon_sha256": "523da556acfffd0c721c272ed36ae497d0d80155844bf5b22f8a4e339f301ffd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22966",
    "kind": "arxiv",
    "version": 1
  }
}