Pith Number

pith:C4UQS2CY

pith:2021:C4UQS2CYTSG472AFIMXVLICPME

not attested not anchored not stored refs pending

Metasurface-Assisted Quantum Ghost Discrimination of Polarization Objects

Andres Vega, Andrey A. Sukhorukov, Frank Setzpfandt, Thomas Pertsch

arxiv:2107.02703 v1 · 2021-07-06 · quant-ph · physics.optics

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C4UQS2CYTSG472AFIMXVLICPME}

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	2026-07-05T04:21:04.847000Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17290968589c8dcfe805432f55a04f612149be2703c049483551234da78e6275

Aliases

arxiv: 2107.02703 · arxiv_version: 2107.02703v1 · doi: 10.48550/arxiv.2107.02703 · pith_short_12: C4UQS2CYTSG4 · pith_short_16: C4UQS2CYTSG472AF · pith_short_8: C4UQS2CY

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/C4UQS2CYTSG472AFIMXVLICPME \
  | 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: 17290968589c8dcfe805432f55a04f612149be2703c049483551234da78e6275

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44bc58028f70da967b5ea385098f32e713493cc57275e117853a17d9fc020e10",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-07-06T16:06:58Z",
    "title_canon_sha256": "4e53a7a6a6b2ac2193ee0e026c599b7fec45db5f5d0458000ab0b20538c1dac5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.02703",
    "kind": "arxiv",
    "version": 1
  }
}