Pith Number

pith:VJKMFV4Q

pith:2010:VJKMFV4QGANVPAJSCAPIC5FBYM

not attested not anchored not stored refs pending

Direct detection of a magnetic field in the photosphere of the single M giant EK Boo: How common is magnetic activity among M giants?

C. Charbonnel, E. Alecian, I. Stateva, K.-P. Schroeder, M. Auriere, N.A. Drake, P. Petit, R.Cabanac, R. Konstantinova-Antova

arxiv:1009.2001 v1 · 2010-09-10 · 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{VJKMFV4QGANVPAJSCAPIC5FBYM}

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	2026-05-18T02:05:31.991287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa54c2d790301b578132101e8174a1c322a882706fad4bcfb63341c49f65eb79

Aliases

arxiv: 1009.2001 · arxiv_version: 1009.2001v1 · doi: 10.48550/arxiv.1009.2001 · pith_short_12: VJKMFV4QGANV · pith_short_16: VJKMFV4QGANVPAJS · pith_short_8: VJKMFV4Q

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/VJKMFV4QGANVPAJSCAPIC5FBYM \
  | 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: aa54c2d790301b578132101e8174a1c322a882706fad4bcfb63341c49f65eb79

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5873c5c0f910ab5ef363eaa339e6ce2f0a9b8f33f23a858d15e3f4816b8cf090",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-09-10T12:56:17Z",
    "title_canon_sha256": "782b35ce7c888a4bdbb43fcc5019334088965243cecb70004db1fe37a7258257"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1009.2001",
    "kind": "arxiv",
    "version": 1
  }
}