Pith Number

pith:SPHE2EJF

pith:2009:SPHE2EJFZMEZO3IKGPAWYNOHFW

not attested not anchored not stored refs pending

Comparison of H-alpha and UV Star Formation Rates in the Local Volume: Systematic Discrepancies for Dwarf Galaxies

Armando Gil de Paz, Benjamin Johnson, Chad Engelbracht, Christy Tremonti, Daniela Calzetti, Daniel Dale, Daniel Weisz, Evan Skillman, Fabian Walter, Janice C. Lee, Jose G. Funes S.J., Julianne Dalcanton, Liese van Zee, Matthew Bothwell, Robert C. Kennicutt Jr., Samir Salim, Shoko Sakai

arxiv:0909.5205 v1 · 2009-09-29 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPHE2EJFZMEZO3IKGPAWYNOHFW}

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	2026-05-18T04:20:59.313008Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93ce4d1125cb09976d0a33c16c35c72d822fe4987033bfea14f86726667a0d02

Aliases

arxiv: 0909.5205 · arxiv_version: 0909.5205v1 · doi: 10.48550/arxiv.0909.5205 · pith_short_12: SPHE2EJFZMEZ · pith_short_16: SPHE2EJFZMEZO3IK · pith_short_8: SPHE2EJF

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/SPHE2EJFZMEZO3IKGPAWYNOHFW \
  | 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: 93ce4d1125cb09976d0a33c16c35c72d822fe4987033bfea14f86726667a0d02

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fde6631da235c144a5b8724b34cfa33390c18539457ae697f4ba41addd200ee",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-09-29T19:26:57Z",
    "title_canon_sha256": "ee94994af2c7be1664bbb55de65c55b10376844ae811776be6c783ff5b1c8d30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.5205",
    "kind": "arxiv",
    "version": 1
  }
}