Pith Number

pith:6NQTZTR3

pith:2001:6NQTZTR3PPCKHHDQOXUJXB65CY

not attested not anchored not stored refs pending

IR Com: Deeply Eclipsing Dwarf Nova Below the Period Gap -- A Twin of HT Cas?

Daisaku Nogami (Kyoto U), Hajime Baba (NAOJ), Taichi Kato (Kyoto U)

arxiv:astro-ph/0110206 v1 · 2001-10-09 · 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{6NQTZTR3PPCKHHDQOXUJXB65CY}

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	2026-05-18T01:40:43.961818Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3613cce3b7bc4a39c7075e89b87dd160a41d1832e8bc19c90d6e203dbe01bb0

Aliases

arxiv: astro-ph/0110206 · arxiv_version: astro-ph/0110206v1 · doi: 10.48550/arxiv.astro-ph/0110206 · pith_short_12: 6NQTZTR3PPCK · pith_short_16: 6NQTZTR3PPCKHHDQ · pith_short_8: 6NQTZTR3

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/6NQTZTR3PPCKHHDQOXUJXB65CY \
  | 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: f3613cce3b7bc4a39c7075e89b87dd160a41d1832e8bc19c90d6e203dbe01bb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d81f09f902923c8b93dc4a87ee0f88353a27498e1335938cbee32f982518ed38",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-10-09T08:41:07Z",
    "title_canon_sha256": "7e77a4979deba99663e2309447eadd90ba9ddad772e5885b3b58478e2d87bbc8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0110206",
    "kind": "arxiv",
    "version": 1
  }
}