Pith Number

pith:VC4G7DT3

pith:2025:VC4G7DT3Z4SOKXYVJUJBLCRWSM

not attested not anchored not stored refs pending

Cepheids in spectroscopic binary systems -- current status and recent discoveries

Bogumi{\l} Pilecki

arxiv:2501.09793 v1 · 2025-01-16 · 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{VC4G7DT3Z4SOKXYVJUJBLCRWSM}

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	2026-07-05T10:02:11.222750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a8b86f8e7bcf24e55f154d12158a36931721781e61ce6b5bcbe2905b0e6bcac4

Aliases

arxiv: 2501.09793 · arxiv_version: 2501.09793v1 · doi: 10.48550/arxiv.2501.09793 · pith_short_12: VC4G7DT3Z4SO · pith_short_16: VC4G7DT3Z4SOKXYV · pith_short_8: VC4G7DT3

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/VC4G7DT3Z4SOKXYVJUJBLCRWSM \
  | 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: a8b86f8e7bcf24e55f154d12158a36931721781e61ce6b5bcbe2905b0e6bcac4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "655b0b95f2b0b2d64823198de7ebdc070c101e595553c80ca29eec4b9ddf4bcc",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-01-16T19:00:04Z",
    "title_canon_sha256": "e1cf566a6fb3ee25735a6e0b55292f37bd13f7406a8880ae428ffb06c1359f9d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.09793",
    "kind": "arxiv",
    "version": 1
  }
}