Pith Number

pith:FG3V56IW

pith:2026:FG3V56IWTIOERIME5WRLN23457

not attested not anchored not stored refs pending

Multi-parameter two-photon polarimetry at the quantum limit

Alessandro Fedrizzi, Joseph Ho, Joseph Niblo, Luca Maggio, Russell M. J. Brooks, Vincenzo Tamma

arxiv:2606.27428 v1 · 2026-06-25 · 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{FG3V56IWTIOERIME5WRLN23457}

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	2026-06-29T00:14:05.752769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

29b75ef9169a1c48a184eda2b6eb7cefea901214e4f977dd5fc4df5c03c4ba64

Aliases

arxiv: 2606.27428 · arxiv_version: 2606.27428v1 · doi: 10.48550/arxiv.2606.27428 · pith_short_12: FG3V56IWTIOE · pith_short_16: FG3V56IWTIOERIME · pith_short_8: FG3V56IW

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/FG3V56IWTIOERIME5WRLN23457 \
  | 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: 29b75ef9169a1c48a184eda2b6eb7cefea901214e4f977dd5fc4df5c03c4ba64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3614f0e3fe3f147032e334faa40ec80f64f1fa7f846449fc8e3c9d2585ea06a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-25T18:00:05Z",
    "title_canon_sha256": "94521642fe527510ef6c0de6ff9ade640b3aed013ddb555f93b1ebdac93f2797"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.27428",
    "kind": "arxiv",
    "version": 1
  }
}