Pith Number

pith:5HNKHWH5

pith:2010:5HNKHWH5JFU76ZNBTWQ75GYDLG

not attested not anchored not stored refs pending

A Decline in the Nonthermal X-ray Emission from Cassiopeia A

Daniel J. Patnaude, Jacco Vink, J. Martin Laming, Robert A. Fesen

arxiv:1012.0243 v1 · 2010-12-01 · 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{5HNKHWH5JFU76ZNBTWQ75GYDLG}

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	2026-05-18T02:04:36.491998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e9daa3d8fd4969ff65a19da1fe9b035984cc9e6c971550b22947307cc0ebd5b6

Aliases

arxiv: 1012.0243 · arxiv_version: 1012.0243v1 · doi: 10.48550/arxiv.1012.0243 · pith_short_12: 5HNKHWH5JFU7 · pith_short_16: 5HNKHWH5JFU76ZNB · pith_short_8: 5HNKHWH5

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/5HNKHWH5JFU76ZNBTWQ75GYDLG \
  | 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: e9daa3d8fd4969ff65a19da1fe9b035984cc9e6c971550b22947307cc0ebd5b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17428da013d3360cfd02d27f861c32929d722dda2da8fe541a9618c25ff052d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2010-12-01T16:52:43Z",
    "title_canon_sha256": "2fd84a0ca74c95a522ade6040ba63ec5298be3dad8f3b953f1cdc4f04d9c352e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1012.0243",
    "kind": "arxiv",
    "version": 1
  }
}