Pith Number

pith:QC4KKDVY

pith:2025:QC4KKDVYNQTRKL6NF65QIRBE3O

not attested not anchored not stored refs pending

Nonlinear coupling between magnetar QPOs

Pantelis Pnigouras, Samuel K. Lander

arxiv:2501.04556 v2 · 2025-01-08 · astro-ph.HE · astro-ph.SR · gr-qc

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QC4KKDVYNQTRKL6NF65QIRBE3O}

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	2026-07-05T11:27:23.129557Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80b8a50eb86c27152fcd2fbb044424dba4fb9031dbe6233ebe1ef988b0fe37ec

Aliases

arxiv: 2501.04556 · arxiv_version: 2501.04556v2 · doi: 10.48550/arxiv.2501.04556 · pith_short_12: QC4KKDVYNQTR · pith_short_16: QC4KKDVYNQTRKL6N · pith_short_8: QC4KKDVY

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/QC4KKDVYNQTRKL6NF65QIRBE3O \
  | 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: 80b8a50eb86c27152fcd2fbb044424dba4fb9031dbe6233ebe1ef988b0fe37ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62b812bf726580875cc74988a28a3abe26fd8979b5ab32cd80833f2fd9e97abd",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2025-01-08T15:07:06Z",
    "title_canon_sha256": "d28fc10e87de5667b4012b70b921dd13635fefef2f383a32cf43b8a092321e19"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.04556",
    "kind": "arxiv",
    "version": 2
  }
}