Pith Number

pith:R23EA2UA

pith:2021:R23EA2UAT4MS7LDSJ62ODEC2C4

not attested not anchored not stored refs pending

Quantum superposition of spacetimes obeys Einstein's Equivalence Principle

Flaminia Giacomini, \v{C}aslav Brukner

arxiv:2109.01405 v2 · 2021-09-03 · 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{R23EA2UAT4MS7LDSJ62ODEC2C4}

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

1 paper in Pith

Quantum Reference Fields Transformations in Linearized Quantum Gravity

Receipt and verification

First computed	2026-07-05T03:46:13.872485Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8eb6406a809f192fac724fb4e1905a170fe91d80f8d05d40d4aef668a79b48ba

Aliases

arxiv: 2109.01405 · arxiv_version: 2109.01405v2 · doi: 10.48550/arxiv.2109.01405 · pith_short_12: R23EA2UAT4MS · pith_short_16: R23EA2UAT4MS7LDS · pith_short_8: R23EA2UA

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/R23EA2UAT4MS7LDSJ62ODEC2C4 \
  | 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: 8eb6406a809f192fac724fb4e1905a170fe91d80f8d05d40d4aef668a79b48ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ea5b445658261bcb2d3a0723449f2ea51d31e940ec67eb21a783853ef71222e",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-03T09:51:18Z",
    "title_canon_sha256": "6d2a3e3f0519c64eb5f643a5a7c1c988cc01f790ec8c3c0e541a97e84d6a70d2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.01405",
    "kind": "arxiv",
    "version": 2
  }
}