Pith Number

pith:S7TASPNW

pith:2026:S7TASPNWMNBFNEZ2R7RTIVDUDL

not attested not anchored not stored refs pending

Pulsation periods reveal tension between theoretical and empirical radii for classical Cepheids in eclipsing binary systems

O. Zi\'o{\l}kowska, R. Singh Rathour, R. Smolec, V. Hocd\'e

arxiv:2608.10909 v1 · 2026-08-11 · 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{S7TASPNWMNBFNEZ2R7RTIVDUDL}

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	2026-08-12T01:23:47.293457Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97e6093db6634256933a8fe33454741af22dba046df938a90cd1209ac8ab306f

Aliases

arxiv: 2608.10909 · arxiv_version: 2608.10909v1 · doi: 10.48550/arxiv.2608.10909 · pith_short_12: S7TASPNWMNBF · pith_short_16: S7TASPNWMNBFNEZ2 · pith_short_8: S7TASPNW

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/S7TASPNWMNBFNEZ2R7RTIVDUDL \
  | 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: 97e6093db6634256933a8fe33454741af22dba046df938a90cd1209ac8ab306f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29159ed09281dc644f95c314d614992db928a651812f60d2a57280718882979b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2026-08-11T13:30:29Z",
    "title_canon_sha256": "18832efba184b44d604fe10ed5a760569be95e1258e06ef5776cd8ac6c4a5f94"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.10909",
    "kind": "arxiv",
    "version": 1
  }
}