Pith Number

pith:YIPQUUYD

pith:2008:YIPQUUYDY3IMXJEUCRXOLQGD4J

not attested not anchored not stored refs pending

A Chain of Dark Clouds in Projection Against the Galactic Center

Hirofumi Hatano, Koji Sugitani, Mikio Kurita, Motohide Tamura, Shogo Nishiyama, Shuji Sato, Takahiro Nagayama, Tetsuya Nagata, Tomoharu Oka, Yasushi Nakajima, Yoshiaki SOFUE, Yuka Murai

arxiv:0812.0865 v1 · 2008-12-04 · 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{YIPQUUYDY3IMXJEUCRXOLQGD4J}

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	2026-05-18T02:15:11.928450Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c21f0a5303c6d0cba494146ee5c0c3e24b79c901ca13427884a2e5e5b861e71b

Aliases

arxiv: 0812.0865 · arxiv_version: 0812.0865v1 · doi: 10.48550/arxiv.0812.0865 · pith_short_12: YIPQUUYDY3IM · pith_short_16: YIPQUUYDY3IMXJEU · pith_short_8: YIPQUUYD

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/YIPQUUYDY3IMXJEUCRXOLQGD4J \
  | 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: c21f0a5303c6d0cba494146ee5c0c3e24b79c901ca13427884a2e5e5b861e71b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2769299eb234e9fc648ed327be7cd8fc6c4e0bf853b4ae761ba089ccc6e1e71a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-04T06:29:50Z",
    "title_canon_sha256": "41c1d0ee506a08f33ef592c18ddd3da5250e2a7f6f715f7476703162ff069e9e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.0865",
    "kind": "arxiv",
    "version": 1
  }
}