Pith Number

pith:O3K35GEC

pith:2014:O3K35GEC6J735KQWL42SFNY5XI

not attested not anchored not stored refs pending

The Supernova Remnant W44: confirmations and challenges for cosmic-ray acceleration

A. Giuliani, G. Castelletti, G. Dubner, H. Sano, M. Cardillo, M. Tavani, S. Yoshiike, T. Fukuda, Y. Fukui

arxiv:1403.1250 v2 · 2014-03-05 · 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{O3K35GEC6J735KQWL42SFNY5XI}

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	2026-05-18T02:51:58.460890Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76d5be9882f27fbeaa165f3522b71dba0620b9ca96e46e3c648de34cbbc1f47d

Aliases

arxiv: 1403.1250 · arxiv_version: 1403.1250v2 · doi: 10.48550/arxiv.1403.1250 · pith_short_12: O3K35GEC6J73 · pith_short_16: O3K35GEC6J735KQW · pith_short_8: O3K35GEC

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/O3K35GEC6J735KQWL42SFNY5XI \
  | 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: 76d5be9882f27fbeaa165f3522b71dba0620b9ca96e46e3c648de34cbbc1f47d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32118134d28ce11bb7ff506c391e4e124ce1ebc08e4ded93e7535ad835d0f4f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2014-03-05T20:56:20Z",
    "title_canon_sha256": "a6a908a6e657d1fdac9f311fec0d967998719a11505d5c482e103b7687f8c5de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.1250",
    "kind": "arxiv",
    "version": 2
  }
}