Pith Number

pith:WPTHFSLI

pith:2009:WPTHFSLIJJELLWLECASJL2RWU6

not attested not anchored not stored refs pending

A Prediction Formula of Supersoft X-ray Phase of Classical Novae

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

arxiv:0912.1136 v1 · 2009-12-06 · astro-ph.SR · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPTHFSLIJJELLWLECASJL2RWU6}

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	2026-05-18T02:33:57.405725Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3e672c9684a48b5d964102495ea36a79ad03f9a9715a1c994da6fd9d798a3db

Aliases

arxiv: 0912.1136 · arxiv_version: 0912.1136v1 · doi: 10.48550/arxiv.0912.1136 · pith_short_12: WPTHFSLIJJEL · pith_short_16: WPTHFSLIJJELLWLE · pith_short_8: WPTHFSLI

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/WPTHFSLIJJELLWLECASJL2RWU6 \
  | 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: b3e672c9684a48b5d964102495ea36a79ad03f9a9715a1c994da6fd9d798a3db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e572844bf24cfcf803546e12f3f5b7e5f4c329ca7b14c36c7842839a0c06eaed",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-06T21:03:31Z",
    "title_canon_sha256": "2b558af28d6e8ea35ec8f8f4a608cff863cdc93cc6a705b521257001bd3d13f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1136",
    "kind": "arxiv",
    "version": 1
  }
}