Pith Number

pith:XAYDWPHS

pith:2021:XAYDWPHSV6J3EJSXM7IS6X4W4V

not attested not anchored not stored refs pending

Discovering new forces with gravitational waves from supermassive black holes

Benjamin V. Lehmann, Hiren H. Patel, Jeff A. Dror, Stefano Profumo

arxiv:2105.04559 v2 · 2021-05-10 · astro-ph.CO · astro-ph.GA · astro-ph.HE · 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{XAYDWPHSV6J3EJSXM7IS6X4W4V}

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	2026-07-05T03:23:41.232189Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b8303b3cf2af93b2265767d12f5f96e5712bc8f855c52f04d7fccba0d88341ae

Aliases

arxiv: 2105.04559 · arxiv_version: 2105.04559v2 · doi: 10.48550/arxiv.2105.04559 · pith_short_12: XAYDWPHSV6J3 · pith_short_16: XAYDWPHSV6J3EJSX · pith_short_8: XAYDWPHS

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/XAYDWPHSV6J3EJSXM7IS6X4W4V \
  | 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: b8303b3cf2af93b2265767d12f5f96e5712bc8f855c52f04d7fccba0d88341ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0d3565e43797a4b92e3bc6c97660559f4c6e4b01abed79abf03a7ae50ec8ee2",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.HE",
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2021-05-10T18:00:00Z",
    "title_canon_sha256": "ff404b6d61d92afc352f698f8503d5038bf0aa43f049c355deb18b79f62278da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.04559",
    "kind": "arxiv",
    "version": 2
  }
}