Pith Number

pith:37N6KFPN

pith:2006:37N6KFPN2PAUSPKSY2Q7HODKZW

not attested not anchored not stored refs pending

The Halpha, Hbeta and Hdelta lines in the spectrum RR Tauri

L.N. Kondratyeva, V.I. Kardopolov

arxiv:astro-ph/0607321 v1 · 2006-07-14 · 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{37N6KFPN2PAUSPKSY2Q7HODKZW}

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	2026-05-18T01:40:30.049420Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dfdbe515edd3c1493d52c6a1f3b86acd863b0d5c91101d8ad167ad5604373f69

Aliases

arxiv: astro-ph/0607321 · arxiv_version: astro-ph/0607321v1 · doi: 10.48550/arxiv.astro-ph/0607321 · pith_short_12: 37N6KFPN2PAU · pith_short_16: 37N6KFPN2PAUSPKS · pith_short_8: 37N6KFPN

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/37N6KFPN2PAUSPKSY2Q7HODKZW \
  | 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: dfdbe515edd3c1493d52c6a1f3b86acd863b0d5c91101d8ad167ad5604373f69

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fe655a1477f3088f2bdbe84ae6a7c39c63d5d042a452776d2b7112ab7065bd1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-07-14T05:11:59Z",
    "title_canon_sha256": "795dc07163d4ec4e16e28ba59d9f0024b194b2bc5c9d255cc2284b6c8fcc9abf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0607321",
    "kind": "arxiv",
    "version": 1
  }
}