Pith Number

pith:P2Q7SYVX

pith:2012:P2Q7SYVXO644YXADS4WBLZWJ5L

not attested not anchored not stored refs pending

The birth rate of supernovae from double-degenerate and core-degenerate systems

Wuming Yang, Xiangcun Meng

arxiv:1205.2452 v2 · 2012-05-11 · 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{P2Q7SYVXO644YXADS4WBLZWJ5L}

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	2026-05-18T01:57:33.493334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ea1f962b777b9cc5c03972c15e6c9eafbb02803d17d56963a396b935009c433

Aliases

arxiv: 1205.2452 · arxiv_version: 1205.2452v2 · doi: 10.48550/arxiv.1205.2452 · pith_short_12: P2Q7SYVXO644 · pith_short_16: P2Q7SYVXO644YXAD · pith_short_8: P2Q7SYVX

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/P2Q7SYVXO644YXADS4WBLZWJ5L \
  | 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: 7ea1f962b777b9cc5c03972c15e6c9eafbb02803d17d56963a396b935009c433

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44e1d0a65bc02aabc8bd19ec8412b5c90857d2a5659c55f88e252d9593cf7a04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-05-11T08:18:34Z",
    "title_canon_sha256": "56a27e51f0dc1eb6375954725178eb27f19e65aa4c68489f85d79cb1d8b49a3e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.2452",
    "kind": "arxiv",
    "version": 2
  }
}