Pith Number

pith:7GW6HWI7

pith:2025:7GW6HWI7H4YZHB6XGP3SXVXIPY

not attested not anchored not stored refs pending

50 Dra: Am-type twins with additional variability in a non-eclipsing system

E. Niemczura, J. Lipt\'ak, M. Cabezas, M. Skarka, M. V\'itkov\'a, P. Kab\'ath, R. Karjalainen, Z. Mikul\'a\v{s}ek

arxiv:2504.05854 v1 · 2025-04-08 · 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{7GW6HWI7H4YZHB6XGP3SXVXIPY}

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	2026-07-05T11:10:37.025096Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9ade3d91f3f319387d733f72bd6e87e1b543f39b43c734d855670ac4c488886

Aliases

arxiv: 2504.05854 · arxiv_version: 2504.05854v1 · doi: 10.48550/arxiv.2504.05854 · pith_short_12: 7GW6HWI7H4YZ · pith_short_16: 7GW6HWI7H4YZHB6X · pith_short_8: 7GW6HWI7

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/7GW6HWI7H4YZHB6XGP3SXVXIPY \
  | 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: f9ade3d91f3f319387d733f72bd6e87e1b543f39b43c734d855670ac4c488886

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efb29c0c2124dcc4b7740be72f9ac7917c63685758ce777caf99df9c81ebe54b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-04-08T09:32:49Z",
    "title_canon_sha256": "77cf1267dcb13e2695576b1f23b4746afac03859533545042e2cb479c2ee0a99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.05854",
    "kind": "arxiv",
    "version": 1
  }
}