Pith Number

pith:KHXBPEZX

pith:2009:KHXBPEZXN466HGDGEWXWYTXDFR

not attested not anchored not stored refs pending

Study of star-forming galaxies in SDSS up to redshift 0.4: I. Metallicity evolution

A. Bongiovanni, A.M. Perez Garcia, H. Castaneda, J. Cepa, M.A. Lara-Lopez, M. Fernandez Lorenzo, M. Povic, M. Sanchez-Portal

arxiv:0907.0450 v1 · 2009-07-02 · 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{KHXBPEZXN466HGDGEWXWYTXDFR}

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	2026-05-18T04:25:51.181869Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

51ee1793376f3de3986625af6c4ee32c43d406bb9b39deaa02e9cae48f4773a8

Aliases

arxiv: 0907.0450 · arxiv_version: 0907.0450v1 · doi: 10.48550/arxiv.0907.0450 · pith_short_12: KHXBPEZXN466 · pith_short_16: KHXBPEZXN466HGDG · pith_short_8: KHXBPEZX

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/KHXBPEZXN466HGDGEWXWYTXDFR \
  | 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: 51ee1793376f3de3986625af6c4ee32c43d406bb9b39deaa02e9cae48f4773a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31fab8e53217fb11c2d48853d9c3288edd2956cec5217e45a72537b763cc5d39",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-07-02T17:46:09Z",
    "title_canon_sha256": "d9a0a840923f09e7e5d1d7cc656391e12900365f40492f6b821318348af203ec"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0450",
    "kind": "arxiv",
    "version": 1
  }
}