Pith Number

pith:3433SIGQ

pith:2015:3433SIGQARWQCWPXZQMU34PM5U

not attested not anchored not stored refs pending

Star formation rates in isolated galaxies selected from the Two-Micron All-Sky Survey

I. Karachentsev, O.Melnyk, V. Karachentseva

arxiv:1504.07990 v1 · 2015-04-29 · 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{3433SIGQARWQCWPXZQMU34PM5U}

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	2026-05-18T02:17:23.617194Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df37b920d0046d0159f7cc194df1eced08f28aa6f017f99b95ce60a0801e208b

Aliases

arxiv: 1504.07990 · arxiv_version: 1504.07990v1 · doi: 10.48550/arxiv.1504.07990 · pith_short_12: 3433SIGQARWQ · pith_short_16: 3433SIGQARWQCWPX · pith_short_8: 3433SIGQ

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/3433SIGQARWQCWPXZQMU34PM5U \
  | 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: df37b920d0046d0159f7cc194df1eced08f28aa6f017f99b95ce60a0801e208b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2ca916ab1ecaab25d0822761f940c06cc41e74fe595fa58dda0d347480920a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-04-29T20:00:35Z",
    "title_canon_sha256": "f893d0c7495ea69cbed9970e154c0087b7b10340747799169c92611ed5f21daa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07990",
    "kind": "arxiv",
    "version": 1
  }
}