Pith Number

pith:QBCMZPDN

pith:2000:QBCMZPDN22AFF7X4FN7GEECZFS

not attested not anchored not stored refs pending

Observations of the supernova remnant W28 at TeV energies

A. Kawachi, for the CANGAROO collaboration), G.J. Thornton, G.P. Rowell (1), H. Muraishi, Japan, J. Holder, J.R. Patterson, K. Nishijima, K. Sakurazawa, M.D. Roberts, M. Mori, P.G. Edwards, R. Susukita, S.A. Dazeley, S. Gunji, S. Ogio, S. Yanagita, T. Hara, T. Kifune, T. Naito, Tokyo, T. Sako, T. Tamura, T. Tanimori, T. Yoshida, T. Yoshikoshi ((1) Institute for Cosmic Ray Research, Y. Matsubara, Y. Mizumoto, Y. Muraki

arxiv:astro-ph/0004280 v1 · 2000-04-19 · astro-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{QBCMZPDN22AFF7X4FN7GEECZFS}

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	2026-07-04T23:57:13.541738Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8044ccbc6dd68052fefc2b7e6210592cafea94f0a0d925339eccd7e2a82bd4d4

Aliases

arxiv: astro-ph/0004280 · arxiv_version: astro-ph/0004280v1 · doi: 10.48550/arxiv.astro-ph/0004280 · pith_short_12: QBCMZPDN22AF · pith_short_16: QBCMZPDN22AFF7X4 · pith_short_8: QBCMZPDN

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/QBCMZPDN22AFF7X4FN7GEECZFS \
  | 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: 8044ccbc6dd68052fefc2b7e6210592cafea94f0a0d925339eccd7e2a82bd4d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fe7eadffd272c277d0e130b513ad33edf317a1706d20b89e4b2d5741052664a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-04-19T15:29:31Z",
    "title_canon_sha256": "03154d7f64ffb55ecdad8b60c45ca76dee65ab9f1fe5ee6ebcd947e6bd468597"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0004280",
    "kind": "arxiv",
    "version": 1
  }
}