Pith Number

pith:W6PZHLE6

pith:1999:W6PZHLE6FM4Y5MHX7ZQLIXILDB

not attested not anchored not stored refs pending

A new catalogue of multiple galaxies in the Local Supercluster

D. I. Makarov, I. D. Karachentsev

arxiv:astro-ph/9909343 v1 · 1999-09-21 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W6PZHLE6FM4Y5MHX7ZQLIXILDB}

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	2026-07-04T14:17:08.433305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b79f93ac9e2b398eb0f7fe60b45d0b18763b75ff123341519883aa229e45862a

Aliases

arxiv: astro-ph/9909343 · arxiv_version: astro-ph/9909343v1 · doi: 10.48550/arxiv.astro-ph/9909343 · pith_short_12: W6PZHLE6FM4Y · pith_short_16: W6PZHLE6FM4Y5MHX · pith_short_8: W6PZHLE6

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/W6PZHLE6FM4Y5MHX7ZQLIXILDB \
  | 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: b79f93ac9e2b398eb0f7fe60b45d0b18763b75ff123341519883aa229e45862a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86c3021c967204dd82b3bc9c404cd7fb17b896c0ef1e05f327d2765a40078325",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-09-21T15:37:45Z",
    "title_canon_sha256": "a772e9439976187b1b0363b7958e2686f4b5e20c5ed7da2cf2de5b632ecd283f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9909343",
    "kind": "arxiv",
    "version": 1
  }
}