Pith Number

pith:QJTTFSWJ

pith:2018:QJTTFSWJXMS5XB5MWEUYDUSA6N

not attested not anchored not stored refs pending

On the measurement of the speed of gravitational wave

Shuang Du

arxiv:1810.13160 v3 · 2018-10-31 · 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{QJTTFSWJXMS5XB5MWEUYDUSA6N}

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	2026-05-17T23:40:34.189144Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

826732cac9bb25db87acb12981d240f34fb8e3015e700a4daa09455a9cde57f6

Aliases

arxiv: 1810.13160 · arxiv_version: 1810.13160v3 · doi: 10.48550/arxiv.1810.13160 · pith_short_12: QJTTFSWJXMS5 · pith_short_16: QJTTFSWJXMS5XB5M · pith_short_8: QJTTFSWJ

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/QJTTFSWJXMS5XB5MWEUYDUSA6N \
  | 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: 826732cac9bb25db87acb12981d240f34fb8e3015e700a4daa09455a9cde57f6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8b5da46009a44d9378d7d79c56245754ebd6b46dc977fb0d27ddc2a8166f56fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2018-10-31T08:46:19Z",
    "title_canon_sha256": "d72afeb4cf48bc3738723c9b4f76803f401789dcbdb3dd3d3eceb403d7b68b0c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.13160",
    "kind": "arxiv",
    "version": 3
  }
}