Pith Number

pith:SG7TAMXA

pith:2010:SG7TAMXAICQCIZLNKRRIZXSTJP

not attested not anchored not stored refs pending

Closed timelike curves via post-selection: theory and experimental demonstration

Aephraim M. Steinberg, Ardavan Darabi, Lee A. Rozema, Lorenzo Maccone, Lynden K. Shalm, Raul Garcia-Patron, Seth Lloyd, Stefano Pirandola, Vittorio Giovannetti, Yasaman Soudagar, Yutaka Shikano

arxiv:1005.2219 v1 · 2010-05-12 · 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{SG7TAMXAICQCIZLNKRRIZXSTJP}

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	2026-05-18T04:30:14.390989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

91bf3032e040a024656d54628cde534bc4360db6f3b563c7e3b28393a621a0e7

Aliases

arxiv: 1005.2219 · arxiv_version: 1005.2219v1 · doi: 10.48550/arxiv.1005.2219 · pith_short_12: SG7TAMXAICQC · pith_short_16: SG7TAMXAICQCIZLN · pith_short_8: SG7TAMXA

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/SG7TAMXAICQCIZLNKRRIZXSTJP \
  | 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: 91bf3032e040a024656d54628cde534bc4360db6f3b563c7e3b28393a621a0e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da79d42d65c66aa7208cc815c366c05de5e5c1efaf3f75ff54b498c34ce41703",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-05-12T22:27:31Z",
    "title_canon_sha256": "9b08184e13ef71ccf3b13a2709d50e9368f3eef8a84b564d11370d7b0afde4cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.2219",
    "kind": "arxiv",
    "version": 1
  }
}