Pith Number

pith:K7IINP5G

pith:2013:K7IINP5GHRK6AJ2EWIAZ23AXKV

not attested not anchored not stored refs pending

A Zoo of Galaxies

Karen L. Masters (ICG Portsmouth)

arxiv:1303.7118 v1 · 2013-03-28 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K7IINP5GHRK6AJ2EWIAZ23AXKV}

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	2026-05-18T03:29:38.216255Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57d086bfa63c55e02744b2019d6c17554d1bd6e9d632f372c0ae057e80e6fb2f

Aliases

arxiv: 1303.7118 · arxiv_version: 1303.7118v1 · doi: 10.48550/arxiv.1303.7118 · pith_short_12: K7IINP5GHRK6 · pith_short_16: K7IINP5GHRK6AJ2E · pith_short_8: K7IINP5G

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/K7IINP5GHRK6AJ2EWIAZ23AXKV \
  | 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: 57d086bfa63c55e02744b2019d6c17554d1bd6e9d632f372c0ae057e80e6fb2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1f062117c4e2f01092c21553ff8a7a94a64c573bd525de28c309fa48c7339ec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-28T13:14:26Z",
    "title_canon_sha256": "5dd3fd426a281f73d79100580413f9a02832efc25e6e9cea1d1144515598192f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.7118",
    "kind": "arxiv",
    "version": 1
  }
}