Pith Number

pith:3GST2X44

pith:2003:3GST2X44QUIV7HLCX4Y267BSID

not attested not anchored not stored refs pending

Time resolved spectroscopy of the variable brown dwarf Kelu-1

C.G. Tinney (AAO), F.J. Clarke (ESO/Chile, IoA Cambridge), S.T. Hodgkin (IoA Cambridge)

arxiv:astro-ph/0301155 v1 · 2003-01-09 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3GST2X44QUIV7HLCX4Y267BSID}

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	2026-05-18T04:27:04.904739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d9a53d5f9c85115f9d62bf31af7c3240fb5b45300ff02ff5f7c00389be89b89d

Aliases

arxiv: astro-ph/0301155 · arxiv_version: astro-ph/0301155v1 · doi: 10.48550/arxiv.astro-ph/0301155 · pith_short_12: 3GST2X44QUIV · pith_short_16: 3GST2X44QUIV7HLC · pith_short_8: 3GST2X44

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/3GST2X44QUIV7HLCX4Y267BSID \
  | 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: d9a53d5f9c85115f9d62bf31af7c3240fb5b45300ff02ff5f7c00389be89b89d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8baf1ff4dfc1002d2a6160c0e163cfdf53b484b2331e108af816221a08e887b5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-01-09T19:25:19Z",
    "title_canon_sha256": "e016cc153073a2806403ec59aedf69aa0756b6ecaa42d653691fedffa9df5dc7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0301155",
    "kind": "arxiv",
    "version": 1
  }
}