Pith Number

pith:BD2DICPW

pith:2004:BD2DICPW3GK3VVXR2QMUVCGRGZ

not attested not anchored not stored refs pending

Forty eclipsing binaries in the Small Magellanic Cloud: fundamental parameters and Cloud distance

I. D. Howarth, R. W. Hilditch, T. J. Harries

arxiv:astro-ph/0411672 v1 · 2004-11-24 · 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{BD2DICPW3GK3VVXR2QMUVCGRGZ}

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	2026-05-18T04:12:02.820252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08f43409f6d995bad6f1d4194a88d136666254afae6efd9e3ea136cbacd4c018

Aliases

arxiv: astro-ph/0411672 · arxiv_version: astro-ph/0411672v1 · doi: 10.48550/arxiv.astro-ph/0411672 · pith_short_12: BD2DICPW3GK3 · pith_short_16: BD2DICPW3GK3VVXR · pith_short_8: BD2DICPW

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/BD2DICPW3GK3VVXR2QMUVCGRGZ \
  | 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: 08f43409f6d995bad6f1d4194a88d136666254afae6efd9e3ea136cbacd4c018

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "38fda3644960062625597eafe03536d13cc1cd3cc134e390ada15f61888eda9c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-24T18:02:57Z",
    "title_canon_sha256": "6ef45256a3207f3e10e39ed632b00efb5488de5bf326dba9c04c5e4c1b4978a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411672",
    "kind": "arxiv",
    "version": 1
  }
}