Pith Number

pith:GMP4GDQ4

pith:2021:GMP4GDQ4SVSOITAX4TMCDZPCGS

not attested not anchored not stored refs pending

Testing the foundations of quantum physics in space Interferometric and non-interferometric tests with Large Particles

Alessio Belenchia, Angelo Bassi, Giulio Gasbarri, Hendrik Ulbricht, Matteo Carlesso, Mauro Paternostro, Rainer Kaltenbaek, Sandro Donadi

arxiv:2106.05349 v1 · 2021-06-09 · quant-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{GMP4GDQ4SVSOITAX4TMCDZPCGS}

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	2026-07-05T03:02:55.569665Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

331fc30e1c9564e44c17e4d821e5e234b1a954f8aeb36c534747826f7d758c05

Aliases

arxiv: 2106.05349 · arxiv_version: 2106.05349v1 · doi: 10.48550/arxiv.2106.05349 · pith_short_12: GMP4GDQ4SVSO · pith_short_16: GMP4GDQ4SVSOITAX · pith_short_8: GMP4GDQ4

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/GMP4GDQ4SVSOITAX4TMCDZPCGS \
  | 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: 331fc30e1c9564e44c17e4d821e5e234b1a954f8aeb36c534747826f7d758c05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "899f76e09df0b015e5c8050ccb0e627e1b21763e9b46bc4b882dce1af14cbde3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-06-09T19:28:49Z",
    "title_canon_sha256": "4ca70389ad4599134fc84ea01d8f1a2d8fc4c7688448700d5f6d972425acf979"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.05349",
    "kind": "arxiv",
    "version": 1
  }
}