Pith Number

pith:M4ICQ3WS

pith:2019:M4ICQ3WSPNTBZIEXTEY4C66SCI

not attested not anchored not stored refs pending

A Catalog of Galaxies in the Direction of the Perseus Cluster

Carolin Wittmann, Christopher J. Conselice, Eva K. Grebel, Joachim Janz, Ralf Kotulla, Samantha J. Penny, Thorsten Lisker

arxiv:1911.00951 v1 · 2019-11-03 · 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{M4ICQ3WSPNTBZIEXTEY4C66SCI}

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	2026-07-05T00:30:34.367595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6710286ed27b661ca0979931c17bd2120df9528666fcd5e5b3ae078b76518fc3

Aliases

arxiv: 1911.00951 · arxiv_version: 1911.00951v1 · doi: 10.48550/arxiv.1911.00951 · pith_short_12: M4ICQ3WSPNTB · pith_short_16: M4ICQ3WSPNTBZIEX · pith_short_8: M4ICQ3WS

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/M4ICQ3WSPNTBZIEXTEY4C66SCI \
  | 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: 6710286ed27b661ca0979931c17bd2120df9528666fcd5e5b3ae078b76518fc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b8f1900d55730e30199f9a90437435b3f54d57b45c194ff755c4244dbc33c8e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-11-03T19:30:13Z",
    "title_canon_sha256": "8b1946c9d4901566060a7deec8357f5922a794c5aabc95bc1da152e7e2644766"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.00951",
    "kind": "arxiv",
    "version": 1
  }
}