Pith Number

pith:VCBEQNVR

pith:2021:VCBEQNVREVZG5PIIHKED3RLQ3D

not attested not anchored not stored refs pending

Swift J011511.0-725611: Discovery of a rare Be Star / White Dwarf binary system in the SMC

A. Udalski, J. A. Kennea, L. J. Townsend, M. J. Coe, P. A. Evans, Z. A. Campbell

arxiv:2109.05307 v1 · 2021-09-11 · 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{VCBEQNVREVZG5PIIHKED3RLQ3D}

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	2026-07-05T03:14:27.093338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8824836b125726ebd083a883dc570d8dce7dcb5a4bb103df8972ed630317d8e

Aliases

arxiv: 2109.05307 · arxiv_version: 2109.05307v1 · doi: 10.48550/arxiv.2109.05307 · pith_short_12: VCBEQNVREVZG · pith_short_16: VCBEQNVREVZG5PII · pith_short_8: VCBEQNVR

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/VCBEQNVREVZG5PIIHKED3RLQ3D \
  | 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: a8824836b125726ebd083a883dc570d8dce7dcb5a4bb103df8972ed630317d8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c78996ab529d3cfad44b0dda79a30204350c11bd24a8aa4b4d1f53548707cf5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-09-11T15:51:13Z",
    "title_canon_sha256": "853768bbe6e9348f015c0900ea9aa480484a7248c36661bb51d7363ad69243f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.05307",
    "kind": "arxiv",
    "version": 1
  }
}