Pith Number

pith:U7M3JVNS

pith:2013:U7M3JVNSOOJUHWGCUI2JYPS5EQ

not attested not anchored not stored refs pending

Galactic and Cosmic Type Ia SN rates: is it possible to impose constraints on SNIa progenitors?

A. Pipino, E. Spitoni, F. Matteucci, I. Bonaparte, S. Recchi, V. Grieco

arxiv:1308.0137 v1 · 2013-08-01 · 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{U7M3JVNSOOJUHWGCUI2JYPS5EQ}

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	2026-05-18T01:48:31.821887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7d9b4d5b2739343d8c2a2349c3e5d24390f233209d15f8ea65c8502a4827631

Aliases

arxiv: 1308.0137 · arxiv_version: 1308.0137v1 · doi: 10.48550/arxiv.1308.0137 · pith_short_12: U7M3JVNSOOJU · pith_short_16: U7M3JVNSOOJUHWGC · pith_short_8: U7M3JVNS

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/U7M3JVNSOOJUHWGCUI2JYPS5EQ \
  | 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: a7d9b4d5b2739343d8c2a2349c3e5d24390f233209d15f8ea65c8502a4827631

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5cf4e67af71b173e411ca7748af87cb164863c375f0a85ce80f292d7abdf9c19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-08-01T09:56:36Z",
    "title_canon_sha256": "df925c346c3b3628bfe313dca6580d103eae38d5a4e96ca79857a813d629fd23"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0137",
    "kind": "arxiv",
    "version": 1
  }
}