Pith Number

pith:V5NSH7MM

pith:2009:V5NSH7MMYTFGWJANOTXCYYH6WI

not attested not anchored not stored refs pending

Star Formation Around Supergiant Shells in the LMC

2), (2) California Institute of Technology, (3) Nagoya University), Laura G. Book (1, Robert A. Gruendl (1), Yasuo Fukui (3) ((1) University of Illinois at Urbana-Champaign, You-Hua Chu (1)

arxiv:0901.0400 v2 · 2009-01-04 · astro-ph.SR · 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{V5NSH7MMYTFGWJANOTXCYYH6WI}

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	2026-05-18T04:34:09.053741Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af5b23fd8cc4ca6b240d74ee2c60feb20fb933959767d167bb13df343d974ef7

Aliases

arxiv: 0901.0400 · arxiv_version: 0901.0400v2 · doi: 10.48550/arxiv.0901.0400 · pith_short_12: V5NSH7MMYTFG · pith_short_16: V5NSH7MMYTFGWJAN · pith_short_8: V5NSH7MM

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/V5NSH7MMYTFGWJANOTXCYYH6WI \
  | 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: af5b23fd8cc4ca6b240d74ee2c60feb20fb933959767d167bb13df343d974ef7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a570800701d8fda5883ba643beb71b756d1f4ea20e003342b10d892d1bd556d",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-01-04T21:36:23Z",
    "title_canon_sha256": "ed80d5f6f742be05d2f85bb8b7cf13729b76252d24bbe5c55bfd0d97a5794dd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0901.0400",
    "kind": "arxiv",
    "version": 2
  }
}