Pith Number

pith:QSJY7YVF

pith:2015:QSJY7YVFFLVXY6AGJH2IIR5TUM

not attested not anchored not stored refs pending

Determining the evolutionary stage of HD163899 on the basis of its oscillation spectrum

Henryk Cugier, Jadwiga Daszy\'nska-Daszkiewicz, Jakub Ostrowski

arxiv:1510.02217 v1 · 2015-10-08 · 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{QSJY7YVFFLVXY6AGJH2IIR5TUM}

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	2026-05-18T01:30:44.445662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84938fe2a52aeb7c780649f48447b3a339a62b0b42a117d38bfbba6f5df940c9

Aliases

arxiv: 1510.02217 · arxiv_version: 1510.02217v1 · doi: 10.48550/arxiv.1510.02217 · pith_short_12: QSJY7YVFFLVX · pith_short_16: QSJY7YVFFLVXY6AG · pith_short_8: QSJY7YVF

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/QSJY7YVFFLVXY6AGJH2IIR5TUM \
  | 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: 84938fe2a52aeb7c780649f48447b3a339a62b0b42a117d38bfbba6f5df940c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2115e17ebedc151d155a4a48d5440075bcfdad6ff564c0aecfff35b4d78d7a46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-10-08T07:53:36Z",
    "title_canon_sha256": "b93683dc2ba236a8c312ac9d46ed9923d296ce3cc2bffe30d047ba9c3e3ea3f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.02217",
    "kind": "arxiv",
    "version": 1
  }
}