Pith Number

pith:C72EPP7W

pith:2012:C72EPP7WAHYCHDVK3ASVAHLWSY

not attested not anchored not stored refs pending

X-Ray Observations of the Supernova Remnant W28 with Suzaku --- I. Spectral Study of the Recombining Plasma

Katsuji Koyama, Makoto Sawada

arxiv:1202.3125 v1 · 2012-02-14 · 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{C72EPP7WAHYCHDVK3ASVAHLWSY}

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	2026-05-18T01:58:28.515330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17f447bff601f0238eaad825501d7696282d0bb166d5161a5264dc12eb4e9caa

Aliases

arxiv: 1202.3125 · arxiv_version: 1202.3125v1 · doi: 10.48550/arxiv.1202.3125 · pith_short_12: C72EPP7WAHYC · pith_short_16: C72EPP7WAHYCHDVK · pith_short_8: C72EPP7W

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/C72EPP7WAHYCHDVK3ASVAHLWSY \
  | 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: 17f447bff601f0238eaad825501d7696282d0bb166d5161a5264dc12eb4e9caa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e84b38c50b66d747a2950d0db45759e1355800529a8f29b4c775ba8fc37d2aca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2012-02-14T20:00:10Z",
    "title_canon_sha256": "46bc29ec0fda039b49d62fe1045eef4328586ef786976bbfcc86b417f1205b8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.3125",
    "kind": "arxiv",
    "version": 1
  }
}