Pith Number

pith:QHFLE77G

pith:2011:QHFLE77GARJYYPTKQZTB7VLAAD

not attested not anchored not stored refs pending

The progenitor of a type Ia supernova with a short delay time?

A.Tiengo, G.L.Israel, L.Stella, N.La Palombara, P.Esposito, S.Mereghetti

arxiv:1109.4573 v1 · 2011-09-21 · astro-ph.SR · 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{QHFLE77GARJYYPTKQZTB7VLAAD}

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	2026-05-18T02:00:27.096496Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81cab27fe604538c3e6a86661fd56000f54af4eeabbb1c513aa4f6faf8ee3fb8

Aliases

arxiv: 1109.4573 · arxiv_version: 1109.4573v1 · doi: 10.48550/arxiv.1109.4573 · pith_short_12: QHFLE77GARJY · pith_short_16: QHFLE77GARJYYPTK · pith_short_8: QHFLE77G

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/QHFLE77GARJYYPTKQZTB7VLAAD \
  | 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: 81cab27fe604538c3e6a86661fd56000f54af4eeabbb1c513aa4f6faf8ee3fb8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17e9bc3bcccd5ff89f5e0413f6ab7a06c7ab19af0647223833fca800eaae5f7f",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-21T16:21:00Z",
    "title_canon_sha256": "40adeb1ac26064bfcefa660b7c9fa9c67239404eaf9ac4e4e8347d717cf5bf0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4573",
    "kind": "arxiv",
    "version": 1
  }
}