Pith Number

pith:DG6IOA4D

pith:2016:DG6IOA4DYPD56IUVYFHRNRRS2C

not attested not anchored not stored refs pending

Direct method for measuring and witnessing quantum entanglement of arbitrary two-qubit states through Hong-Ou-Mandel interference

Grzegorz Chimczak, Karel Lemr, Karol Bartkiewicz

arxiv:1612.00782 v2 · 2016-12-02 · 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{DG6IOA4DYPD56IUVYFHRNRRS2C}

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	2026-05-18T00:49:37.719352Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

19bc870383c3c7df2295c14f16c632d092d33246433f2a503a0cc33fe000b430

Aliases

arxiv: 1612.00782 · arxiv_version: 1612.00782v2 · doi: 10.48550/arxiv.1612.00782 · pith_short_12: DG6IOA4DYPD5 · pith_short_16: DG6IOA4DYPD56IUV · pith_short_8: DG6IOA4D

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/DG6IOA4DYPD56IUVYFHRNRRS2C \
  | 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: 19bc870383c3c7df2295c14f16c632d092d33246433f2a503a0cc33fe000b430

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc0472d90fd6b2cec80a3733a96236962817c100a8b9d7ed4261627453d020e8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-12-02T18:26:31Z",
    "title_canon_sha256": "ae2b54699d030e629200d9381e1a6a8652728a290ecd141247a6ac09e43c2d28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.00782",
    "kind": "arxiv",
    "version": 2
  }
}