Pith Number

pith:4RPN344F

pith:2018:4RPN344FYJFLDCRO6QN4TAOUBT

not attested not anchored not stored refs pending

Triggering the formation of the supergiant H II region NGC 604 in M33

Hidetoshi Sano, Kazuyuki Muraoka, Kengo Tachihara, Kisetsu Tsuge, Pierre Gratier, Rie E. Miura, Yasuo Fukui

arxiv:1802.02310 v1 · 2018-02-07 · 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{4RPN344FYJFLDCRO6QN4TAOUBT}

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	2026-05-18T00:13:28.009768Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e45eddf385c24ab18a2ef41bc981d40cc52bd628e56174545e6e0dc6f170a10f

Aliases

arxiv: 1802.02310 · arxiv_version: 1802.02310v1 · doi: 10.48550/arxiv.1802.02310 · pith_short_12: 4RPN344FYJFL · pith_short_16: 4RPN344FYJFLDCRO · pith_short_8: 4RPN344F

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/4RPN344FYJFLDCRO6QN4TAOUBT \
  | 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: e45eddf385c24ab18a2ef41bc981d40cc52bd628e56174545e6e0dc6f170a10f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2cd78147b53afa8f42df518a0d3c6458a447c0b266197c06d72f9072493e7e98",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-02-07T05:23:16Z",
    "title_canon_sha256": "c4a342b619a543720a0fe90572ea4fb4db51efafe28621872c05a7c5f12645ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02310",
    "kind": "arxiv",
    "version": 1
  }
}