Pith Number

pith:SM5J2OLJ

pith:2009:SM5J2OLJR6GAFPD37MEV4UDS7U

not attested not anchored not stored refs pending

The Discovery of Remote Globular Clusters in M33

A. Huxor, A.M.N. Ferguson, G. Lewis, M.J. Irwin, M.K. Barker, N.R. Tanvir, R. Ibata, S.C. Chapman

arxiv:0904.1494 v1 · 2009-04-09 · 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{SM5J2OLJR6GAFPD37MEV4UDS7U}

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	2026-05-18T04:29:43.674063Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

933a9d39698f8c02bc7bfb095e5072fd3ef2d4e9fb8ca85b2467562f76f0e03b

Aliases

arxiv: 0904.1494 · arxiv_version: 0904.1494v1 · doi: 10.48550/arxiv.0904.1494 · pith_short_12: SM5J2OLJR6GA · pith_short_16: SM5J2OLJR6GAFPD3 · pith_short_8: SM5J2OLJ

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/SM5J2OLJR6GAFPD37MEV4UDS7U \
  | 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: 933a9d39698f8c02bc7bfb095e5072fd3ef2d4e9fb8ca85b2467562f76f0e03b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "abe95dc6cd339899678fc309a01f1166b54f12e4b23d5129c11b391ac59cc5f5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-04-09T10:03:09Z",
    "title_canon_sha256": "082357436608f67c883235cfe95e086e6d0665c7a5775e87b8699a722880056c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.1494",
    "kind": "arxiv",
    "version": 1
  }
}