Pith Number

pith:BTZFLZ75

pith:2014:BTZFLZ7546CMZH3YABAYFHIRB2

not attested not anchored not stored refs pending

Are compact groups hostile towards faint galaxies?

2), (2) OAC (UNC), (3) IAG (USP) Sao Paulo, Argentina, Ariel Zandivarez (1, Brazil), Claudia Mendes de Oliveira (3), Cordoba, Eugenia Diaz-Gimenez (1, Henrique Gubolin (3) ((1) IATE (CONICET)

arxiv:1409.6740 v1 · 2014-09-23 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BTZFLZ7546CMZH3YABAYFHIRB2}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:32:21.755413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cf255e7fde784cc9f780041829d110e98b114d9dfc07e88b8145d57544cb62a

Aliases

arxiv: 1409.6740 · arxiv_version: 1409.6740v1 · doi: 10.48550/arxiv.1409.6740 · pith_short_12: BTZFLZ7546CM · pith_short_16: BTZFLZ7546CMZH3Y · pith_short_8: BTZFLZ75

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/BTZFLZ7546CMZH3YABAYFHIRB2 \
  | 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: 0cf255e7fde784cc9f780041829d110e98b114d9dfc07e88b8145d57544cb62a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07c852953d9de236cb7ae9b89b38eb5cc6daae6ed522083a3ff704b56b43cc83",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-09-23T20:19:06Z",
    "title_canon_sha256": "1c272cdf4333decfd2ab646e3f692d0deecab19d87c617d69ebfb81b77fdb292"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.6740",
    "kind": "arxiv",
    "version": 1
  }
}