Pith Number

pith:RY643XY4

pith:2009:RY643XY4XNKL4R6ELG4PB7NAKR

not attested not anchored not stored refs pending

Improved fundamental parameters and LTE abundances of the CoRoT solar-type pulsator HD49933

2), (2) Institute of Astronomy, Austria, D. Shulyak (1) ((1) Institute of Astronomy, L. Fossati (1), Russia), Russian Academy of Science, T. Ryabchikova (1, Vienna University

arxiv:0905.3153 v1 · 2009-05-19 · 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{RY643XY4XNKL4R6ELG4PB7NAKR}

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	2026-05-18T02:13:38.574292Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3dcddf1cbb54be47c459b8f0fda054646271a6b7c6a4573e3a65e238cc301f

Aliases

arxiv: 0905.3153 · arxiv_version: 0905.3153v1 · doi: 10.48550/arxiv.0905.3153 · pith_short_12: RY643XY4XNKL · pith_short_16: RY643XY4XNKL4R6E · pith_short_8: RY643XY4

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/RY643XY4XNKL4R6ELG4PB7NAKR \
  | 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: 8e3dcddf1cbb54be47c459b8f0fda054646271a6b7c6a4573e3a65e238cc301f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7990f2570488d5ef5322125aa16fe07a6ddee241d08f1b149740bd95ec026688",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-05-19T17:47:25Z",
    "title_canon_sha256": "2c20224f5bc27b6e684ca66f983e3a3680cf0a3ab16bcb2b41d3dd7ddfe25216"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0905.3153",
    "kind": "arxiv",
    "version": 1
  }
}