Pith Number

pith:CPSME5HT

pith:2001:CPSME5HTSAGQ5A7PFBH7ONDTB5

not attested not anchored not stored refs pending

Spiral Structure in WZ Sagittae around the 2001 Outburst Maximum

Daisaku Nogami, Hajime Baba, Katsura Matsumoto, Kazuya Ayani, Kozo Sadakane, Makoto Makita, Masayuki Ioroi, Taichi Kato, Yuji Norimoto

arxiv:astro-ph/0112374 v1 · 2001-12-16 · 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{CPSME5HTSAGQ5A7PFBH7ONDTB5}

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	2026-05-18T01:40:43.583849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13e4c274f3900d0e83ef284ff734730f612d1d55fad53d9cdf36172a8d09b1d2

Aliases

arxiv: astro-ph/0112374 · arxiv_version: astro-ph/0112374v1 · doi: 10.48550/arxiv.astro-ph/0112374 · pith_short_12: CPSME5HTSAGQ · pith_short_16: CPSME5HTSAGQ5A7P · pith_short_8: CPSME5HT

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/CPSME5HTSAGQ5A7PFBH7ONDTB5 \
  | 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: 13e4c274f3900d0e83ef284ff734730f612d1d55fad53d9cdf36172a8d09b1d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24a4ab752d53385b208d51ae26856b3c2e25c91c36433bb502aa186797018513",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-12-16T07:30:04Z",
    "title_canon_sha256": "7b2cda5f740ab580ae11ae533d21f0d25bd3c83cfa570c004e716fd29cacc3a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0112374",
    "kind": "arxiv",
    "version": 1
  }
}