The reviewed record of science sign in
Pith
Pith Number

pith:OA67XSEH

pith:2024:OA67XSEHUJWBNQTRATVTDN7SGF
not attested not anchored not stored refs pending

Experimental evidence that a photon can spend a negative amount of time in an atom cloud

Aephraim M. Steinberg, Andy Jiao, Daniela Angulo, Howard M. Wiseman, Kyle Thompson, Vida-Michelle Nixon

arxiv:2409.03680 v1 · 2024-09-05 · quant-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{OA67XSEHUJWBNQTRATVTDN7SGF}

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

Receipt and verification
First computed 2026-07-05T09:03:43.003911Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

703dfbc887a26c16c27104eb31b7f231637794c8a483dbf6b74bae2e89f134ab

Aliases

arxiv: 2409.03680 · arxiv_version: 2409.03680v1 · doi: 10.48550/arxiv.2409.03680 · pith_short_12: OA67XSEHUJWB · pith_short_16: OA67XSEHUJWBNQTR · pith_short_8: OA67XSEH
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/OA67XSEHUJWBNQTRATVTDN7SGF \
  | 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: 703dfbc887a26c16c27104eb31b7f231637794c8a483dbf6b74bae2e89f134ab
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c1b0aa0ba5302c12bc8a526381aeb2a7637ff800cc1ebbf9c115356de57b7018",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2024-09-05T16:32:50Z",
    "title_canon_sha256": "868e27c9dee6b7483522a2136b14aab33734e5a2a1d9f9f3ce229b0e2abedc9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2409.03680",
    "kind": "arxiv",
    "version": 1
  }
}