Pith Number

pith:I6PXBZ2X

pith:2001:I6PXBZ2XM52ZFPOXDQQ6M34HBL

not attested not anchored not stored refs pending

Prediction of supersoft X-ray phase, helium enrichment, and turn-off time in recurrent nova CI Aquilae 2000 outburst

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

arxiv:astro-ph/0104461 v1 · 2001-04-28 · 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{I6PXBZ2XM52ZFPOXDQQ6M34HBL}

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	2026-07-04T16:23:18.628446Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

479f70e757677592bdd71c21e66f870adea1c4363bcb0d32d4059aab3007539b

Aliases

arxiv: astro-ph/0104461 · arxiv_version: astro-ph/0104461v1 · doi: 10.48550/arxiv.astro-ph/0104461 · pith_short_12: I6PXBZ2XM52Z · pith_short_16: I6PXBZ2XM52ZFPOX · pith_short_8: I6PXBZ2X

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/I6PXBZ2XM52ZFPOXDQQ6M34HBL \
  | 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: 479f70e757677592bdd71c21e66f870adea1c4363bcb0d32d4059aab3007539b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82539c531284aa49c28a14b3a3c6a674ad3d51d6fe9ddcd257a0f15f80c522c7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-04-28T07:51:37Z",
    "title_canon_sha256": "798d21075d7cfacf404bdcea2f3684d080c63dc842159cfeee8cf359ebc79253"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0104461",
    "kind": "arxiv",
    "version": 1
  }
}