Pith Number

pith:KSPLUSQZ

pith:2011:KSPLUSQZDR4S42VVXIMYWDSCJO

not attested not anchored not stored refs pending

Multi-Epoch Observations of HD69830: High Resolution Spectroscopy and Limits to Variability

A. F. Boden, A. M. Tanner, C. A. Beichman, C. M. Lisse, C. Salyk, D. R. Ciardi, G. Bryden, M. C. Wyatt, R. L. Akeson, S. E. Dodson-Robinson

arxiv:1108.4704 v1 · 2011-08-23 · astro-ph.GA

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KSPLUSQZDR4S42VVXIMYWDSCJO}

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	2026-05-18T02:00:48.999178Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

549eba4a191c792e6ab5ba198b0e424b804e19463c59af134facfd9012abfb72

Aliases

arxiv: 1108.4704 · arxiv_version: 1108.4704v1 · doi: 10.48550/arxiv.1108.4704 · pith_short_12: KSPLUSQZDR4S · pith_short_16: KSPLUSQZDR4S42VV · pith_short_8: KSPLUSQZ

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/KSPLUSQZDR4S42VVXIMYWDSCJO \
  | 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: 549eba4a191c792e6ab5ba198b0e424b804e19463c59af134facfd9012abfb72

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "926db825558db9524a8b3c507adeb19c4df63ea467f11e870f1498bac69a051e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-08-23T21:10:48Z",
    "title_canon_sha256": "5d7e770c9bb918aa9cb4b1978dc888f11258b03876f153b997b3e1e5f9690796"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.4704",
    "kind": "arxiv",
    "version": 1
  }
}