Pith Number

pith:6QVSRYGH

pith:2026:6QVSRYGH3XCMOUJYBIUEO7RVRO

not attested not anchored not stored refs pending

The Beauty of k2: Probing Stellar Interiors Using Apsidal Motion. I. The Benchmark Massive Binary HD 152248

Cyril Georgy, Joris Josiek, Luca Sciarini, Patrick Eggenberger, Sophie Rosu, Sylvia Ekstr\"om

arxiv:2605.21236 v1 · 2026-05-20 · 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{6QVSRYGH3XCMOUJYBIUEO7RVRO}

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	2026-05-21T01:05:45.079426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f42b28e0c7ddc4c751380a28477e358ba21b7a67d2d2328f5a60a1ca510b7aa7

Aliases

arxiv: 2605.21236 · arxiv_version: 2605.21236v1 · doi: 10.48550/arxiv.2605.21236 · pith_short_12: 6QVSRYGH3XCM · pith_short_16: 6QVSRYGH3XCMOUJY · pith_short_8: 6QVSRYGH

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/6QVSRYGH3XCMOUJYBIUEO7RVRO \
  | 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: f42b28e0c7ddc4c751380a28477e358ba21b7a67d2d2328f5a60a1ca510b7aa7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e28ec57342a17584a42136e605060922b6790379554fe540e7aa1cc0a8b5aede",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-05-20T14:25:06Z",
    "title_canon_sha256": "2d5d4d7f82108fa1d02bb33de623e5b48eadf40aeb240cbc0b70dae0918bf7bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21236",
    "kind": "arxiv",
    "version": 1
  }
}