Pith Number

pith:UFQ4ZPDM

pith:2016:UFQ4ZPDMY3PJ5WDF5XNDUWPOKE

not attested not anchored not stored refs pending

Unsupervised clustering of Type II supernova light curves

Adam Rubin, Avishay Gal-Yam

arxiv:1602.01446 v2 · 2016-01-31 · astro-ph.HE · 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{UFQ4ZPDMY3PJ5WDF5XNDUWPOKE}

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	2026-05-18T01:04:13.887110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a161ccbc6cc6de9ed865edda3a59ee512463eb36d6b34257da2fb00898d2d03f

Aliases

arxiv: 1602.01446 · arxiv_version: 1602.01446v2 · doi: 10.48550/arxiv.1602.01446 · pith_short_12: UFQ4ZPDMY3PJ · pith_short_16: UFQ4ZPDMY3PJ5WDF · pith_short_8: UFQ4ZPDM

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/UFQ4ZPDMY3PJ5WDF5XNDUWPOKE \
  | 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: a161ccbc6cc6de9ed865edda3a59ee512463eb36d6b34257da2fb00898d2d03f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "63a255881c9c1eb63ca5b595bde4ea3231ed587a1adc5343dacb00bb259d1ebf",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2016-01-31T17:57:17Z",
    "title_canon_sha256": "b9dd40c76f0b9d0b45d223ea95e214fef145a06e272a8201db12a8fd486324e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1602.01446",
    "kind": "arxiv",
    "version": 2
  }
}