Pith Number

pith:QAY2DASQ

pith:2026:QAY2DASQ2G2P33MQC25LIR4W6V

not attested not anchored not stored refs pending

Why Little Red Dots Disappear at z < 3: Evolution of Number Density and Halo Mass

Chenxuan Zhang, Huanian Zhang, Jian-Min Wang, Luis C. Ho, Qingwen Wu

arxiv:2606.02773 v1 · 2026-06-01 · 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{QAY2DASQ2G2P33MQC25LIR4W6V}

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	2026-06-03T01:05:21.413544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8031a18250d1b4fded9016bab44796f56f994f210c612bd167cb4b2e10d914fe

Aliases

arxiv: 2606.02773 · arxiv_version: 2606.02773v1 · doi: 10.48550/arxiv.2606.02773 · pith_short_12: QAY2DASQ2G2P · pith_short_16: QAY2DASQ2G2P33MQ · pith_short_8: QAY2DASQ

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/QAY2DASQ2G2P33MQC25LIR4W6V \
  | 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: 8031a18250d1b4fded9016bab44796f56f994f210c612bd167cb4b2e10d914fe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b7f9d7d4c388b32e89865fca5a822eacff0951c25a88db85ffd9095c0969a09",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-06-01T18:35:41Z",
    "title_canon_sha256": "f9486f109b778b887b9aa252b9d1179347cce9efeeabaa3fbba9af7ed0f4097d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02773",
    "kind": "arxiv",
    "version": 1
  }
}