Pith Number

pith:3DY22B3I

pith:2025:3DY22B3IRBNVSOBVNYINOTJKDL

not attested not anchored not stored refs pending

Deep neutral hydrogen observations of the early-type galaxy NGC 2768: collided by a newly discovered satellite galaxy?

Chuan-Peng Zhang, Jin-Long Xu, Ming Zhu, Nai-Ping Yu, Peng Jiang, Xiao-Lan Liu

arxiv:2507.04703 v1 · 2025-07-07 · 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{3DY22B3IRBNVSOBVNYINOTJKDL}

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	2026-07-05T11:32:52.451644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8f1ad0768885b5938356e10d74d2a1ac678cd3be3eb27b0c6bab6cf82f53f21

Aliases

arxiv: 2507.04703 · arxiv_version: 2507.04703v1 · doi: 10.48550/arxiv.2507.04703 · pith_short_12: 3DY22B3IRBNV · pith_short_16: 3DY22B3IRBNVSOBV · pith_short_8: 3DY22B3I

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/3DY22B3IRBNVSOBVNYINOTJKDL \
  | 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: d8f1ad0768885b5938356e10d74d2a1ac678cd3be3eb27b0c6bab6cf82f53f21

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3317c312d1b8ddcfcb239afa243acc75e9f822298ef9b96ba070bc98f8369cfa",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-07-07T06:52:11Z",
    "title_canon_sha256": "21c50e28d418e10d454781e8bbfed183b43fd800bc5c1d21ebf1dde23714327c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.04703",
    "kind": "arxiv",
    "version": 1
  }
}