Pith Number

pith:7UTNVCUC

pith:2009:7UTNVCUCLQGY4LUPLMWSHXMQBQ

not attested not anchored not stored refs pending

Rates and Delay Times of Type Ia Supernovae

Ashley J. Ruiter (NMSU/CfA), Chris L. Fryer (LANL), Krzysztof Belczynski (LANL)

arxiv:0904.3108 v1 · 2009-04-21 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7UTNVCUCLQGY4LUPLMWSHXMQBQ}

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.

Cited by

1 paper in Pith

A survey of ultra-compact high-state AM CVn binaries with ZTF and Gaia: New discoveries and observational constraints on Galactic space density

Receipt and verification

First computed	2026-07-04T17:29:21.422368Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd26da8a825c0d8e2e8f5b2d23dd900c3ce7616161430504811697b170a1dd89

Aliases

arxiv: 0904.3108 · arxiv_version: 0904.3108v1 · doi: 10.48550/arxiv.0904.3108 · pith_short_12: 7UTNVCUCLQGY · pith_short_16: 7UTNVCUCLQGY4LUP · pith_short_8: 7UTNVCUC

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/7UTNVCUCLQGY4LUPLMWSHXMQBQ \
  | 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: fd26da8a825c0d8e2e8f5b2d23dd900c3ce7616161430504811697b170a1dd89

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a05de6d3686c7a8853247ba02d3ce9c6b508fefa2be09d8ffdaf877db8ea0278",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-21T03:42:00Z",
    "title_canon_sha256": "9418ba6506caff2fdbe5a5255eeedb80f2a14b85d6d1248b0131009f3e875baa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3108",
    "kind": "arxiv",
    "version": 1
  }
}