Pith Number

pith:KXJBRF7R

pith:2009:KXJBRF7RTRQHGKE3TXR3G23HDL

not attested not anchored not stored refs pending

WD + MS systems as the progenitor of SNe Ia

Wuming Yang, Xiangcun Meng

arxiv:0912.0804 v1 · 2009-12-04 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KXJBRF7RTRQHGKE3TXR3G23HDL}

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	2026-05-18T02:10:26.584167Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

55d21897f19c6073289b9de3b36b671acca03b297374e1a2b62c0dc949584ebe

Aliases

arxiv: 0912.0804 · arxiv_version: 0912.0804v1 · doi: 10.48550/arxiv.0912.0804 · pith_short_12: KXJBRF7RTRQH · pith_short_16: KXJBRF7RTRQHGKE3 · pith_short_8: KXJBRF7R

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/KXJBRF7RTRQHGKE3TXR3G23HDL \
  | 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: 55d21897f19c6073289b9de3b36b671acca03b297374e1a2b62c0dc949584ebe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "51c78eeba1dd6837edb95342891738eadd8f317f0b74a228423a7c4706a8ab17",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-04T09:54:21Z",
    "title_canon_sha256": "b12a3bc45b37020ccaf8f9572756f4fa624fd30b8e0ff9bdfc545cabc7463324"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.0804",
    "kind": "arxiv",
    "version": 1
  }
}