Pith Number

pith:7ZHZFQT6

pith:2025:7ZHZFQT6IWSHQ2M245LOCMWJ3Z

not attested not anchored not stored refs pending

The Impact of Early Massive Galaxy Formation on the Cosmic Microwave Background

Eda Gjergo, Pavel Kroupa

arxiv:2505.04687 v1 · 2025-05-07 · 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{7ZHZFQT6IWSHQ2M245LOCMWJ3Z}

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	2026-07-05T11:00:11.876101Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe4f92c27e45a478699ae756e132c9de632055bd773a4e05dae79d4f242db89a

Aliases

arxiv: 2505.04687 · arxiv_version: 2505.04687v1 · doi: 10.48550/arxiv.2505.04687 · pith_short_12: 7ZHZFQT6IWSH · pith_short_16: 7ZHZFQT6IWSHQ2M2 · pith_short_8: 7ZHZFQT6

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/7ZHZFQT6IWSHQ2M245LOCMWJ3Z \
  | 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: fe4f92c27e45a478699ae756e132c9de632055bd773a4e05dae79d4f242db89a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a51559894e4b401abc0d524de800c5854179a5798ec110f47d4e1bcbf61e0dc5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-05-07T18:00:01Z",
    "title_canon_sha256": "21b936bb8940a291c6ab5f1fb154945a70a796f33cb588c41eed47b0134549b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.04687",
    "kind": "arxiv",
    "version": 1
  }
}