Pith Number

pith:RBK2YI4M

pith:2015:RBK2YI4MR7KURQOFUW7SDWRPYP

not attested not anchored not stored refs pending

Demographics of Isolated Galaxies Along the Hubble Sequence

Hong-geun Khim, Jaehyun Lee, Jongwon Park, Rory Smith, Seong-Woo Seo, Sukyoung K. Yi

arxiv:1507.04069 v1 · 2015-07-15 · 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{RBK2YI4MR7KURQOFUW7SDWRPYP}

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	2026-05-18T01:33:42.503265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8855ac238c8fd548c1c5a5bf21da2fc3e63bb03a603dfd4c3349f191401b9444

Aliases

arxiv: 1507.04069 · arxiv_version: 1507.04069v1 · doi: 10.48550/arxiv.1507.04069 · pith_short_12: RBK2YI4MR7KU · pith_short_16: RBK2YI4MR7KURQOF · pith_short_8: RBK2YI4M

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/RBK2YI4MR7KURQOFUW7SDWRPYP \
  | 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: 8855ac238c8fd548c1c5a5bf21da2fc3e63bb03a603dfd4c3349f191401b9444

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c7f5d9ef2a6187150fbdb84709e5e7b8ed01cbfb512ff041f67f47b592700df7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-07-15T02:16:00Z",
    "title_canon_sha256": "8280f4b0b229bf85ef95ac501221e8ff85390af8008db65d6acb047b9f28e0f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.04069",
    "kind": "arxiv",
    "version": 1
  }
}