Pith Number

pith:DKSFXJ4E

pith:2009:DKSFXJ4E6WLPAZSHBHLZD4JLFP

not attested not anchored not stored refs pending

Secondary Parameters of Type Ia Supernova Light Curves

A. M. Khokhlov, E. Baron, G. Folatelli, K. Krisciunas, L. Wang, M. Hamuy, M. M. Phillips, N. Suntzeff, P. Hoeflich

arxiv:0912.2231 v1 · 2009-12-11 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DKSFXJ4E6WLPAZSHBHLZD4JLFP}

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	2026-05-18T02:33:56.832922Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1aa45ba784f596f0664709d791f12b2bed30e8962b029fbf51ad622926766c0a

Aliases

arxiv: 0912.2231 · arxiv_version: 0912.2231v1 · doi: 10.48550/arxiv.0912.2231 · pith_short_12: DKSFXJ4E6WLP · pith_short_16: DKSFXJ4E6WLPAZSH · pith_short_8: DKSFXJ4E

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/DKSFXJ4E6WLPAZSHBHLZD4JLFP \
  | 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: 1aa45ba784f596f0664709d791f12b2bed30e8962b029fbf51ad622926766c0a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d48a561190554a3b390a5787e7f82a132867a452fe37c8b6d063a8c15f69040",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-12-11T13:39:15Z",
    "title_canon_sha256": "96aad509ad54d51fcd5ca11b050929ea85d533fd47f73874e6fe3c28a1c20b6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.2231",
    "kind": "arxiv",
    "version": 1
  }
}