Pith Number

pith:UCA4UY5Q

pith:2016:UCA4UY5QMBHVOSQEM4MYQYPEAT

not attested not anchored not stored refs pending

Eventful Evolution of Giant Molecular Clouds in Dynamically Evolving Spiral Arms

Junichi Baba, Kana Morokuma-Matsui, Takayuki R. Saitoh

arxiv:1609.00097 v2 · 2016-09-01 · 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{UCA4UY5QMBHVOSQEM4MYQYPEAT}

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	2026-05-18T01:03:48.432699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a081ca63b0604f574a0467198861e404cb954387da3f0052bfef5dd307900ccf

Aliases

arxiv: 1609.00097 · arxiv_version: 1609.00097v2 · doi: 10.48550/arxiv.1609.00097 · pith_short_12: UCA4UY5QMBHV · pith_short_16: UCA4UY5QMBHVOSQE · pith_short_8: UCA4UY5Q

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/UCA4UY5QMBHVOSQEM4MYQYPEAT \
  | 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: a081ca63b0604f574a0467198861e404cb954387da3f0052bfef5dd307900ccf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f6e8bc91b571db1df4cc67d73ff9ccbba1685b13902f2909866696d5f5f17b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-09-01T03:22:46Z",
    "title_canon_sha256": "9bf19816ed6bfbb0b32ba2e9ea2d0b393225feafa6812e95b887ee574b7da5b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.00097",
    "kind": "arxiv",
    "version": 2
  }
}