Pith Number

pith:KOYPD73N

pith:2022:KOYPD73NE7TTTKXXHQE5S7YUGQ

not attested not anchored not stored refs pending

Quantum interference measurement of the free fall of anti-hydrogen

Olivier Rousselle, Pierre Clad\'e, Romain Gu\'erout, Sa\"ida Guellati-Kh\'elifa, Serge Reynaud

arxiv:2204.10778 v1 · 2022-04-22 · quant-ph · physics.atom-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{KOYPD73NE7TTTKXXHQE5S7YUGQ}

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	2026-07-05T06:00:30.371791Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53b0f1ff6d27e739aaf73c09d97f14340be12b0fb1f03a8b393d7ef5df95e6a5

Aliases

arxiv: 2204.10778 · arxiv_version: 2204.10778v1 · doi: 10.48550/arxiv.2204.10778 · pith_short_12: KOYPD73NE7TT · pith_short_16: KOYPD73NE7TTTKXX · pith_short_8: KOYPD73N

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/KOYPD73NE7TTTKXXHQE5S7YUGQ \
  | 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: 53b0f1ff6d27e739aaf73c09d97f14340be12b0fb1f03a8b393d7ef5df95e6a5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07657431f2a47d110f338919c9a234b8c782d761f150044c0bf35da0423c8906",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-04-22T15:50:38Z",
    "title_canon_sha256": "bd30ec53c92bcda6869ca8f66c6ec0e20b1f647ce610130badaad06c602de9bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2204.10778",
    "kind": "arxiv",
    "version": 1
  }
}