Pith Number

pith:XS6A2JSP

pith:2018:XS6A2JSPAFPPCWVPFZ4DXLRPLY

not attested not anchored not stored refs pending

Quantum-metrology estimation of spacetime parameters of the Earth outperforming classical precision

David Edward Bruschi, Ivette Fuentes, Jan Kohlrus

arxiv:1811.07322 v3 · 2018-11-18 · quant-ph · gr-qc · physics.space-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{XS6A2JSPAFPPCWVPFZ4DXLRPLY}

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	2026-05-17T23:49:45.043919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcbc0d264f015ef15aaf2e783bae2f5e33b4ca3d4faa028b4cae07b7cb82bfad

Aliases

arxiv: 1811.07322 · arxiv_version: 1811.07322v3 · doi: 10.48550/arxiv.1811.07322 · pith_short_12: XS6A2JSPAFPP · pith_short_16: XS6A2JSPAFPPCWVP · pith_short_8: XS6A2JSP

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/XS6A2JSPAFPPCWVPFZ4DXLRPLY \
  | 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: bcbc0d264f015ef15aaf2e783bae2f5e33b4ca3d4faa028b4cae07b7cb82bfad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "27dd5e50c7a26ba822b5d42b1f5bf3cf84447bde381f9efd7b329cd906546a5e",
    "cross_cats_sorted": [
      "gr-qc",
      "physics.space-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-11-18T12:34:25Z",
    "title_canon_sha256": "6b9810dcc5e797c62cb2eef498d8c42ea8b4852666b5e4ab20e487d8882ab6b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07322",
    "kind": "arxiv",
    "version": 3
  }
}