Pith Number

pith:WSPX5VLG

pith:2012:WSPX5VLGH4B3LBPQNZ2R4KTZH4

not attested not anchored not stored refs pending

Error Analysis of Ia Supernova and Query on Cosmic Dark Energy

Kun Wang, Qiuhe Peng, Yiming Hu, Yu Liang

arxiv:1201.3866 v1 · 2012-01-16 · physics.gen-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WSPX5VLGH4B3LBPQNZ2R4KTZH4}

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	2026-05-18T01:58:47.196846Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b49f7ed5663f03b585f06e751e2a793f32b97906e1f3b517718ed272308474c9

Aliases

arxiv: 1201.3866 · arxiv_version: 1201.3866v1 · doi: 10.48550/arxiv.1201.3866 · pith_short_12: WSPX5VLGH4B3 · pith_short_16: WSPX5VLGH4B3LBPQ · pith_short_8: WSPX5VLG

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/WSPX5VLGH4B3LBPQNZ2R4KTZH4 \
  | 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: b49f7ed5663f03b585f06e751e2a793f32b97906e1f3b517718ed272308474c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be4a7257ee3273fe37881e9a61ea74ec50b7d40e816f3aab43d16e92d26511a6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2012-01-16T17:00:38Z",
    "title_canon_sha256": "e065464844cdff778d83c6ed2ab7fb3e2276b087cdb5220e6bfa4a6dc3f63f12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3866",
    "kind": "arxiv",
    "version": 1
  }
}