Pith Number

pith:SPD5YM6D

pith:2025:SPD5YM6DDUG7XAGJYAAPFZMBOT

not attested not anchored not stored refs pending

The power of SKA to Constrain cosmological gravitational-wave backgrounds below the astrophysical foreground noise

Chengjie Fu, Jing Liu

arxiv:2506.14366 v1 · 2025-06-17 · astro-ph.CO · gr-qc · hep-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{SPD5YM6DDUG7XAGJYAAPFZMBOT}

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	2026-07-05T11:22:54.196329Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93c7dc33c31d0dfb80c9c000f2e58174c0543d3cef6c0a1cd2d84f04f360df56

Aliases

arxiv: 2506.14366 · arxiv_version: 2506.14366v1 · doi: 10.48550/arxiv.2506.14366 · pith_short_12: SPD5YM6DDUG7 · pith_short_16: SPD5YM6DDUG7XAGJ · pith_short_8: SPD5YM6D

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/SPD5YM6DDUG7XAGJYAAPFZMBOT \
  | 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: 93c7dc33c31d0dfb80c9c000f2e58174c0543d3cef6c0a1cd2d84f04f360df56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fb7078a7293c14bbb59ef491d777f4cc3ca8e35153353633a5f7acdced72344",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2025-06-17T10:07:51Z",
    "title_canon_sha256": "cb1887a3e3c535f41ca21b11d7f59c9850402e9996a2a0480306ff3fa9bef74c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.14366",
    "kind": "arxiv",
    "version": 1
  }
}