Pith Number

pith:2K67E6PS

pith:2022:2K67E6PSZ2T4RIZ24AML5X55HE

not attested not anchored not stored refs pending

Measuring the Hubble Constant with Double Gravitational Wave Sources in Pulsar Timing

Casey McGrath, Daniel J. D'Orazio, Jolien Creighton

arxiv:2208.06495 v2 · 2022-08-12 · astro-ph.CO · astro-ph.HE · 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{2K67E6PSZ2T4RIZ24AML5X55HE}

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	2026-07-05T05:05:50.178097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d2bdf279f2cea7c8a33ae018bedfbd393c1476e4e0009c9bc0ffbec926094438

Aliases

arxiv: 2208.06495 · arxiv_version: 2208.06495v2 · doi: 10.48550/arxiv.2208.06495 · pith_short_12: 2K67E6PSZ2T4 · pith_short_16: 2K67E6PSZ2T4RIZ2 · pith_short_8: 2K67E6PS

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/2K67E6PSZ2T4RIZ24AML5X55HE \
  | 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: d2bdf279f2cea7c8a33ae018bedfbd393c1476e4e0009c9bc0ffbec926094438

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "68b59231c068ec1b6b6fd0f4d6eb83ea5f7ad8d9ad95ee04c9b1b6d1ce128a0c",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2022-08-12T20:48:48Z",
    "title_canon_sha256": "50d704cdc8b43a8ff8fcd141811e8f962cac03ca62201b95095f918705a4d1ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.06495",
    "kind": "arxiv",
    "version": 2
  }
}