Pith Number

pith:PTDJRS25

pith:2018:PTDJRS255JYLEH6ZIWA7KHF4UO

not attested not anchored not stored refs pending

A precise extragalactic test of General Relativity

David Bacon, Karen L. Masters, Kazuya Koyama, Kyle B. Westfall, Lindsay J. Oldham, Matthew W. Auger, Portsmouth), Remco van den Bosch, Robert C. Nichol, Russell J. Smith, Thomas E. Collett (ICG

arxiv:1806.08300 v1 · 2018-06-21 · astro-ph.CO · astro-ph.GA · 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{PTDJRS255JYLEH6ZIWA7KHF4UO}

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	2026-05-18T00:11:33.167948Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7cc698cb5dea70b21fd94581f51cbca3846b95ed0432218bcd38d0528d2390b7

Aliases

arxiv: 1806.08300 · arxiv_version: 1806.08300v1 · doi: 10.48550/arxiv.1806.08300 · pith_short_12: PTDJRS255JYL · pith_short_16: PTDJRS255JYLEH6Z · pith_short_8: PTDJRS25

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/PTDJRS255JYLEH6ZIWA7KHF4UO \
  | 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: 7cc698cb5dea70b21fd94581f51cbca3846b95ed0432218bcd38d0528d2390b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb21c3481823e562a2030256dabe4e678a4f08e18954789445438cbdd0dd08e5",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2018-06-21T15:56:13Z",
    "title_canon_sha256": "ee2a14fad8c96bf137986750ac21572721d13fd9e060fbaa6b92ee6a079ca3ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.08300",
    "kind": "arxiv",
    "version": 1
  }
}