Pith Number

pith:NIRTFU7I

pith:2005:NIRTFU7IYAUOPC72ZYWKW4FFX7

not attested not anchored not stored refs pending

SiO Maser Sources toward Globular Clusters

Noriyuki Matsunaga, Shuji Deguchi, Toshihiko Tanabe, Yoshifusa Ita, Yoshikazu Nakada

arxiv:astro-ph/0502176 v1 · 2005-02-09 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NIRTFU7IYAUOPC72ZYWKW4FFX7}

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	2026-05-18T01:40:34.480372Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a2332d3e8c028e78bface2cab70a5bfda102f1f351a887c9756f7cef0bb0b51

Aliases

arxiv: astro-ph/0502176 · arxiv_version: astro-ph/0502176v1 · doi: 10.48550/arxiv.astro-ph/0502176 · pith_short_12: NIRTFU7IYAUO · pith_short_16: NIRTFU7IYAUOPC72 · pith_short_8: NIRTFU7I

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/NIRTFU7IYAUOPC72ZYWKW4FFX7 \
  | 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: 6a2332d3e8c028e78bface2cab70a5bfda102f1f351a887c9756f7cef0bb0b51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd8cb41b83cdc15b6bcd797ef264ba5ad6befa44143733a418ba8cbb9b9e03da",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-02-09T05:22:04Z",
    "title_canon_sha256": "b1f8d90f871cb6f5b42657b092d708504b58863a513a2ae6e28a6a856e55723a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0502176",
    "kind": "arxiv",
    "version": 1
  }
}