Pith Number

pith:ZWAVRXYP

pith:2010:ZWAVRXYPHTTFU5AVPQF4YKUEPX

not attested not anchored not stored refs pending

The Exceptionally Luminous Type Ia Supernova 2007if

C. W. Akerlof, E. Chatzopoulos, F. Aharonian, F. Yuan, J. C. Wheeler, J. M. Miller, J. Vinko, R. M. Quimby, S. Kulkarni, T. A. McKay

arxiv:1004.3329 v2 · 2010-04-20 · 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{ZWAVRXYPHTTFU5AVPQF4YKUEPX}

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	2026-05-18T02:07:56.489750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd8158df0f3ce65a74157c0bcc2a847dc15000f12dee104bb51057c687b90b01

Aliases

arxiv: 1004.3329 · arxiv_version: 1004.3329v2 · doi: 10.48550/arxiv.1004.3329 · pith_short_12: ZWAVRXYPHTTF · pith_short_16: ZWAVRXYPHTTFU5AV · pith_short_8: ZWAVRXYP

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/ZWAVRXYPHTTFU5AVPQF4YKUEPX \
  | 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: cd8158df0f3ce65a74157c0bcc2a847dc15000f12dee104bb51057c687b90b01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "415f10753c7ee61f29828657ca659586efdd40e5501cb05f2608829d64eab608",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-20T01:48:16Z",
    "title_canon_sha256": "61e47de4f922cffcd9931c288c8c3004ceaf787717c6ebeff041adc5a12c2af9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3329",
    "kind": "arxiv",
    "version": 2
  }
}