Pith Number

pith:YNNAHNMU

pith:2026:YNNAHNMUM5S22RLZIKZEC4PKRN

not attested not anchored not stored refs pending

Possible chemical signatures of first-star enrichment in a very metal-poor galaxy overdensity near the end of reionization

Alessandra Venditti, Daichi Kashino, Eduardo Ba\~nados, Feige Wang, Frederick B. Davies, Huanian Zhang, Hyunsung Jun, Irene Vanni, Jinyi Yang, Jorryt Matthee, Koki Kakiichi, Lise Christensen, Mingyu Li, Rongmon Bordoloi, Ruari Mackenzie, Sarah E. I. Bosman, Shiwu Zhang, Siwei Zou, Sof\'ia Rojas-Ruiz, Stefania Salvadori, Trystyn A. M. Berg, Valentina D'Odorico, Xiangyu Jin, Xiaohui Fan, Yongda Zhu, Zheng Cai, Zihao Li

arxiv:2606.31638 v1 · 2026-06-30 · 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{YNNAHNMUM5S22RLZIKZEC4PKRN}

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	2026-07-01T01:18:10.213362Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c35a03b5946765ad457942b24171ea8b6abb9ac9b7bf398da1c52e2681f27ae7

Aliases

arxiv: 2606.31638 · arxiv_version: 2606.31638v1 · doi: 10.48550/arxiv.2606.31638 · pith_short_12: YNNAHNMUM5S2 · pith_short_16: YNNAHNMUM5S22RLZ · pith_short_8: YNNAHNMU

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/YNNAHNMUM5S22RLZIKZEC4PKRN \
  | 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: c35a03b5946765ad457942b24171ea8b6abb9ac9b7bf398da1c52e2681f27ae7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f15ef935561736831da8a4c9dccb44ef26230b9186ad745127e9f5a61b9fa22",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-30T13:21:41Z",
    "title_canon_sha256": "95dece41a0a36b0ae843fa6b18308883f64ed7d989eb47a9a778435f1c90fd23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.31638",
    "kind": "arxiv",
    "version": 1
  }
}