Pith Number

pith:FHAY3X7L

pith:2025:FHAY3X7LPYYO5DR5Q2NZUTN3ZX

not attested not anchored not stored refs pending

Passive polarization and phase stabilization scheme for Twin-Field QKD

Christiano M. S. Nascimento, Felipe Calliari, Guilherme P. Tempor\~ao

arxiv:2507.01205 v1 · 2025-07-01 · 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{FHAY3X7LPYYO5DR5Q2NZUTN3ZX}

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

Demonstration of an LLO CV-QKD system over 12 km of optical fiber

Receipt and verification

First computed	2026-07-05T11:30:26.857876Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29c18ddfeb7e30ee8e3d869b9a4dbbcdc0191eea31b06488da0937fb915295c4

Aliases

arxiv: 2507.01205 · arxiv_version: 2507.01205v1 · doi: 10.48550/arxiv.2507.01205 · pith_short_12: FHAY3X7LPYYO · pith_short_16: FHAY3X7LPYYO5DR5 · pith_short_8: FHAY3X7L

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/FHAY3X7LPYYO5DR5Q2NZUTN3ZX \
  | 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: 29c18ddfeb7e30ee8e3d869b9a4dbbcdc0191eea31b06488da0937fb915295c4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1d19250568e70a5359c7abb4dba7e3a0e07bb9215d5f7c63332d1f87e2ebd8e3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-01T21:53:46Z",
    "title_canon_sha256": "41b8dc9e5e3041f66f4a8774f1fad381aaa69367e9fdc470ce42a41e5ccecaa3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.01205",
    "kind": "arxiv",
    "version": 1
  }
}