Pith Number

pith:VKVIYF4L

pith:2025:VKVIYF4LPOCDKEPCFWZTGMRB4J

not attested not anchored not stored refs pending

Three new 2+2 quadruple systems with changing inclination

H. Ku\v{c}\'akov\'a, J. K\'ara, J. Merc, M. Ma\v{s}ek, P. Zasche, R. Uhla\v{r}, Z. Henzl

arxiv:2504.17298 v1 · 2025-04-24 · 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{VKVIYF4LPOCDKEPCFWZTGMRB4J}

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	2026-07-05T10:53:26.111777Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aaaa8c178b7b843511e22db3333221e277638cb709f3a52cee3776412de446f6

Aliases

arxiv: 2504.17298 · arxiv_version: 2504.17298v1 · doi: 10.48550/arxiv.2504.17298 · pith_short_12: VKVIYF4LPOCD · pith_short_16: VKVIYF4LPOCDKEPC · pith_short_8: VKVIYF4L

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/VKVIYF4LPOCDKEPCFWZTGMRB4J \
  | 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: aaaa8c178b7b843511e22db3333221e277638cb709f3a52cee3776412de446f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a6f283c6a751387bd1201212f5bc26523326db49e08e4d0a599f266cbf968776",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2025-04-24T06:46:38Z",
    "title_canon_sha256": "5f93964bbcd16a9842dcf192e04cd94ad97b04988b302f27a545fc1ab4690328"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.17298",
    "kind": "arxiv",
    "version": 1
  }
}