Pith Number

pith:6IRFAJ3C

pith:2011:6IRFAJ3CYK7SAOPCXGVBEZ5VKM

not attested not anchored not stored refs pending

A new super-soft X-ray source in the Small Magellanic Cloud: Discovery of the first Be/white dwarf system in the SMC?

A. Udalski, F. Haberl, M. J. Coe, N. La Palombara, R. A. Owen, R. Sturm, S. Mereghetti, W. Pietsch

arxiv:1112.0176 v1 · 2011-12-01 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6IRFAJ3CYK7SAOPCXGVBEZ5VKM}

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	2026-05-18T01:59:20.534281Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f222502762c2bf2039e2b9aa1267b55322c9cebc287caf12d5239d170d4a2f1e

Aliases

arxiv: 1112.0176 · arxiv_version: 1112.0176v1 · doi: 10.48550/arxiv.1112.0176 · pith_short_12: 6IRFAJ3CYK7S · pith_short_16: 6IRFAJ3CYK7SAOPC · pith_short_8: 6IRFAJ3C

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/6IRFAJ3CYK7SAOPCXGVBEZ5VKM \
  | 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: f222502762c2bf2039e2b9aa1267b55322c9cebc287caf12d5239d170d4a2f1e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaa28e98d9cc549c886ef62e41e1031f002df927bd772a66999247be7e604c3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-12-01T13:44:21Z",
    "title_canon_sha256": "72f085b5a318e8fede645cdae7bd28f47d45f88bca3776b33cde86b59b5ca5ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0176",
    "kind": "arxiv",
    "version": 1
  }
}