Pith Number

pith:YRKPQ5AP

pith:2025:YRKPQ5APYYMD6PVSTOA44UGQQZ

not attested not anchored not stored refs pending

An H$\alpha$ Cloud in the HI Tail: Recent Star Formation in the Outskirts of NGC 4258 Revealed by Nanshan 1-m Telescope

Abdusamatjan Iskandar, Ali Esamdin, Cheng cheng, Guojie Feng, Gustavo Orellana, Haojing Yan, Jia-Sheng Huang, Letian Wang, Pei Zuo, Peng Wei, Shahidin Yaqup, Wei Du, Yong Wang, Zhi-Xiang Zhang, Zi-Jian Li

arxiv:2506.21321 v1 · 2025-06-26 · 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{YRKPQ5APYYMD6PVSTOA44UGQQZ}

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	2026-07-05T11:27:43.570556Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c454f8740fc6183f3eb29b81ce50d0866727aad875a6784faafac3f4160a18ba

Aliases

arxiv: 2506.21321 · arxiv_version: 2506.21321v1 · doi: 10.48550/arxiv.2506.21321 · pith_short_12: YRKPQ5APYYMD · pith_short_16: YRKPQ5APYYMD6PVS · pith_short_8: YRKPQ5AP

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/YRKPQ5APYYMD6PVSTOA44UGQQZ \
  | 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: c454f8740fc6183f3eb29b81ce50d0866727aad875a6784faafac3f4160a18ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f87a06a64734cb9b30deabbecf1a527924dc7550b2c312667a4a09bc291534b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-06-26T14:36:18Z",
    "title_canon_sha256": "26df06c69aad4f23713f2b84a562befb7960600e84aa4a14b86e39a40eaf597c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.21321",
    "kind": "arxiv",
    "version": 1
  }
}