Pith Number

pith:4ZEKDO7M

pith:2011:4ZEKDO7MTO3AGGD6VRN77B27GP

not attested not anchored not stored refs pending

Progenitors of type Ia supernovae in elliptical galaxies

Akos Bogdan (CfA), IKI), Marat Gilfanov (MPA

arxiv:1103.3659 v1 · 2011-03-18 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ZEKDO7MTO3AGGD6VRN77B27GP}

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	2026-05-18T02:02:49.670269Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e648a1bbec9bb603187eac5bff875f33e2653a7ed27889ba47ee4393d3da8ba5

Aliases

arxiv: 1103.3659 · arxiv_version: 1103.3659v1 · doi: 10.48550/arxiv.1103.3659 · pith_short_12: 4ZEKDO7MTO3A · pith_short_16: 4ZEKDO7MTO3AGGD6 · pith_short_8: 4ZEKDO7M

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/4ZEKDO7MTO3AGGD6VRN77B27GP \
  | 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: e648a1bbec9bb603187eac5bff875f33e2653a7ed27889ba47ee4393d3da8ba5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b55b358cb940f26a9c0a3afb4490b22c41b6f289f3f9fcfd8787773a70a108f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-03-18T16:37:28Z",
    "title_canon_sha256": "1415cee56d263f885510609ce3f768636b6dc9bd57f07bf9a4537ba00102cfd9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.3659",
    "kind": "arxiv",
    "version": 1
  }
}