Pith Number

pith:MIBW5447

pith:2009:MIBW5447LYOWYFHB2GM6MIV6PO

not attested not anchored not stored refs pending

H band Image of a Planetary Companion around HR 8799 in 2002

Hiroshi Shibai, Masahiko Hayashi, Misato Fukagawa, Motohide Tamura, Saeko S. Hayashi, Yoichi Itoh, Yumiko Oasa, Yutaka Fujita

arxiv:0903.1919 v1 · 2009-03-11 · 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{MIBW5447LYOWYFHB2GM6MIV6PO}

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	2026-05-18T04:29:16.019940Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62036ef39f5e1d6c14e1d199e622be7b87c60cb242815d8639ab959517f2cb8b

Aliases

arxiv: 0903.1919 · arxiv_version: 0903.1919v1 · doi: 10.48550/arxiv.0903.1919 · pith_short_12: MIBW5447LYOW · pith_short_16: MIBW5447LYOWYFHB · pith_short_8: MIBW5447

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/MIBW5447LYOWYFHB2GM6MIV6PO \
  | 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: 62036ef39f5e1d6c14e1d199e622be7b87c60cb242815d8639ab959517f2cb8b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa42ae7920fa21ab881a8350591b66e064a4b69c615df1ea2d8f63d39286249a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-11T11:29:27Z",
    "title_canon_sha256": "296df596bfe023259d8d19b72f79198ff59c923d18efd1e9c48775e5a597d4d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.1919",
    "kind": "arxiv",
    "version": 1
  }
}