Pith Number

pith:BD4HYXYL

pith:2013:BD4HYXYLUXVAGYJMI22F4VJF2U

not attested not anchored not stored refs pending

Galaxy triplets in Sloan Digital Sky Survey Data Release 7: II. A connection with compact groups?

Ana Laura O'Mill, Diego G. Lambas, Fernanda Duplancic, Laerte Sodr\'e Jr, Sol Alonso

arxiv:1306.0891 v1 · 2013-06-04 · astro-ph.CO · 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{BD4HYXYLUXVAGYJMI22F4VJF2U}

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	2026-05-18T01:49:32.924174Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08f87c5f0ba5ea03612c46b45e5525d5006cd540edc564048030b4b5d353de48

Aliases

arxiv: 1306.0891 · arxiv_version: 1306.0891v1 · doi: 10.48550/arxiv.1306.0891 · pith_short_12: BD4HYXYLUXVA · pith_short_16: BD4HYXYLUXVAGYJM · pith_short_8: BD4HYXYL

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/BD4HYXYLUXVAGYJMI22F4VJF2U \
  | 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: 08f87c5f0ba5ea03612c46b45e5525d5006cd540edc564048030b4b5d353de48

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f03ef20f796f7c3b4e66e67c7ce6ed795dd7be7a96574ad60cd7be2d05514b79",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-06-04T19:58:33Z",
    "title_canon_sha256": "cf946dcc83d548610ec1d9a3868336f9cb85cdda5e69f18a116d2da65116bad4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.0891",
    "kind": "arxiv",
    "version": 1
  }
}