Pith Number

pith:3KA4EXML

pith:2009:3KA4EXMLJ5H72FWKH2EYGND6O7

not attested not anchored not stored refs pending

Do stellar magnetic cycles influence the measurement of precise radial velocities?

C. Lovis, C. Melo, J. Gomes da Silva, N.C. Santos

arxiv:0912.2901 v2 · 2009-12-15 · astro-ph.EP · 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{3KA4EXMLJ5H72FWKH2EYGND6O7}

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	2026-05-18T02:10:23.452975Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

da81c25d8b4f4ffd16ca3e8983347e77f3109add6a7ca211cb9f106c80ffaddb

Aliases

arxiv: 0912.2901 · arxiv_version: 0912.2901v2 · doi: 10.48550/arxiv.0912.2901 · pith_short_12: 3KA4EXMLJ5H7 · pith_short_16: 3KA4EXMLJ5H72FWK · pith_short_8: 3KA4EXML

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/3KA4EXMLJ5H72FWKH2EYGND6O7 \
  | 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: da81c25d8b4f4ffd16ca3e8983347e77f3109add6a7ca211cb9f106c80ffaddb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2543e06fb06063c06bfc7209099357052eb1716f94c7b59106c035e380a8c46",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2009-12-15T14:05:27Z",
    "title_canon_sha256": "edf70d378268087d5b3b11e95ab0603bda2c941039d62f86b2484a98a0393e3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2901",
    "kind": "arxiv",
    "version": 2
  }
}