Pith Number

pith:MVEUEQB4

pith:2003:MVEUEQB4BFNVJY3L7QVCDUSTS2

not attested not anchored not stored refs pending

Upper limits on the strength of periodic gravitational waves from PSR J1939+2134

B. Allen, G. Woan (for the LIGO Scientific Collaboration)

arxiv:gr-qc/0311023 v1 · 2003-11-07 · 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{MVEUEQB4BFNVJY3L7QVCDUSTS2}

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	2026-07-04T23:54:17.725666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

654942403c095b54e36bfc2a21d25396a626e35820ce1142ec6a1c3839751177

Aliases

arxiv: gr-qc/0311023 · arxiv_version: gr-qc/0311023v1 · doi: 10.48550/arxiv.gr-qc/0311023 · pith_short_12: MVEUEQB4BFNV · pith_short_16: MVEUEQB4BFNVJY3L · pith_short_8: MVEUEQB4

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/MVEUEQB4BFNVJY3L7QVCDUSTS2 \
  | 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: 654942403c095b54e36bfc2a21d25396a626e35820ce1142ec6a1c3839751177

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff6a88f8a42e83479eceba26e13d45eb054334345ee0f43f28e0f8268d769df3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-11-07T13:56:04Z",
    "title_canon_sha256": "32a6efbc7ecdab61fb129350c5d064a6625379fe331ebcdc3f9d6210aab623d7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0311023",
    "kind": "arxiv",
    "version": 1
  }
}