Pith Number

pith:XVJKBMDA

pith:2007:XVJKBMDALKIVPVT6MOCQRVRPXM

not attested not anchored not stored refs pending

A Universal Decline Law of Classical Novae. II. GK Persei 1901 and Novae in 2005

Izumi Hachisu (Univ. of Tokyo), Mariko Kato (Keio Univ.)

arxiv:astro-ph/0702563 v1 · 2007-02-21 · 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{XVJKBMDALKIVPVT6MOCQRVRPXM}

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	2026-05-18T04:29:06.311783Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd52a0b0605a9157d67e638508d62fbb3e562bbd4ab581f2a62d84510ba8bbed

Aliases

arxiv: astro-ph/0702563 · arxiv_version: astro-ph/0702563v1 · doi: 10.48550/arxiv.astro-ph/0702563 · pith_short_12: XVJKBMDALKIV · pith_short_16: XVJKBMDALKIVPVT6 · pith_short_8: XVJKBMDA

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/XVJKBMDALKIVPVT6MOCQRVRPXM \
  | 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: bd52a0b0605a9157d67e638508d62fbb3e562bbd4ab581f2a62d84510ba8bbed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "909b58b305e16913ff8ba30b9e588550b33c0bf7fda2d96c9be4f99f8d153114",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-02-21T09:39:52Z",
    "title_canon_sha256": "19a40a6471af4ecbb4a3a1e4d891e28957d8e2023b3d71ebb71535ee7867f0b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0702563",
    "kind": "arxiv",
    "version": 1
  }
}