Pith Number

pith:AEVJX4G4

pith:2009:AEVJX4G4IV5QVF7EPU3P74ZRAA

not attested not anchored not stored refs pending

The chromospheric emission of solar-type stars in the young open clusters IC 2391 and IC 2602

B. D. Carter, J.-F. Donati, S. C. Marsden

arxiv:0907.0286 v1 · 2009-07-02 · 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{AEVJX4G4IV5QVF7EPU3P74ZRAA}

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	2026-05-18T02:13:11.295890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

012a9bf0dc457b0a97e47d36fff331003a483e6501409714fb1bbc8b5fe5232d

Aliases

arxiv: 0907.0286 · arxiv_version: 0907.0286v1 · doi: 10.48550/arxiv.0907.0286 · pith_short_12: AEVJX4G4IV5Q · pith_short_16: AEVJX4G4IV5QVF7E · pith_short_8: AEVJX4G4

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/AEVJX4G4IV5QVF7EPU3P74ZRAA \
  | 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: 012a9bf0dc457b0a97e47d36fff331003a483e6501409714fb1bbc8b5fe5232d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80491a1bc36f2492d48742ee3ef205509c3719e5c15f8eaec19dcd38715ca522",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-07-02T04:14:42Z",
    "title_canon_sha256": "4c6734c500d6267c1dc3872d053cabe21f512c780b93dab19445d89c0eef8f55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0286",
    "kind": "arxiv",
    "version": 1
  }
}