Pith Number

pith:2U43YRJK

pith:2022:2U43YRJKXUAPGVPQ7SXRNHWAPN

not attested not anchored not stored refs pending

Gravity entanglement, quantum reference systems, degrees of freedom

Andrea Di Biagio, Carlo Rovelli, Marios Christodoulou, Richard Howl

arxiv:2207.03138 v1 · 2022-07-07 · quant-ph · 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{2U43YRJKXUAPGVPQ7SXRNHWAPN}

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.

Cited by

2 papers in Pith

Existing experiments suffice to indirectly verify the quantum essence of gravity

When does entanglement through gravity imply gravitons?

Receipt and verification

First computed	2026-07-05T05:39:16.347213Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d539bc452abd00f355f0fcaf169ec07b6fab5c69c6eba1636dd2d75a797875d3

Aliases

arxiv: 2207.03138 · arxiv_version: 2207.03138v1 · doi: 10.48550/arxiv.2207.03138 · pith_short_12: 2U43YRJKXUAP · pith_short_16: 2U43YRJKXUAPGVPQ · pith_short_8: 2U43YRJK

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/2U43YRJKXUAPGVPQ7SXRNHWAPN \
  | 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: d539bc452abd00f355f0fcaf169ec07b6fab5c69c6eba1636dd2d75a797875d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de21bdd1ccb3e296eb07424ac6440640c54ecdd5ed2c3679c63030b4c9564e9c",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-07-07T07:59:38Z",
    "title_canon_sha256": "4dee174363a21a62a171839798e6f95f09de58d05f554c7eb50753c19dda7523"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.03138",
    "kind": "arxiv",
    "version": 1
  }
}