Pith Number

pith:4TYZMF2S

pith:2010:4TYZMF2SWWHVLOG6BBB4OWDTLR

not attested not anchored not stored refs pending

High dispersion spectroscopy of two A supergiant systems in the Small Magellanic Cloud with novel properties

M. A. Smith, R.E. Mennickent

arxiv:1005.1230 v1 · 2010-05-07 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4TYZMF2SWWHVLOG6BBB4OWDTLR}

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	2026-05-18T02:07:41.630657Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4f1961752b58f55b8de0843c758735c44c27ec7202a1eebdfc73f865fae94a7

Aliases

arxiv: 1005.1230 · arxiv_version: 1005.1230v1 · doi: 10.48550/arxiv.1005.1230 · pith_short_12: 4TYZMF2SWWHV · pith_short_16: 4TYZMF2SWWHVLOG6 · pith_short_8: 4TYZMF2S

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/4TYZMF2SWWHVLOG6BBB4OWDTLR \
  | 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: e4f1961752b58f55b8de0843c758735c44c27ec7202a1eebdfc73f865fae94a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb22cb723e2cb3288cc9bbce3cb838e4a20f9f5f9a664232496095df1df3e6e7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-05-07T15:26:27Z",
    "title_canon_sha256": "1505e03ca2496ca61ed10ae764f185b487f59ccb373c32ce128df2ba869f993a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.1230",
    "kind": "arxiv",
    "version": 1
  }
}