Pith Number

pith:M6CAORK4

pith:2022:M6CAORK4ET4RXXNGKWLC6HTR7V

not attested not anchored not stored refs pending

A perspective on few-copy entanglement detection in experiments

Philip Walther, Valeria Saggio

arxiv:2201.02641 v1 · 2022-01-07 · 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{M6CAORK4ET4RXXNGKWLC6HTR7V}

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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

Witness based nonlinear detection of quantum entanglement

Receipt and verification

First computed	2026-07-05T03:46:46.729943Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

678407455c24f91bdda655962f1e71fd6f00361c4a55e470455d8643e088e003

Aliases

arxiv: 2201.02641 · arxiv_version: 2201.02641v1 · doi: 10.48550/arxiv.2201.02641 · pith_short_12: M6CAORK4ET4R · pith_short_16: M6CAORK4ET4RXXNG · pith_short_8: M6CAORK4

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/M6CAORK4ET4RXXNGKWLC6HTR7V \
  | 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: 678407455c24f91bdda655962f1e71fd6f00361c4a55e470455d8643e088e003

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bad9f4e3915bf9309b581ea9d0d2b10dcd7da0230d9430131be612d1e097f7e4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-01-07T19:01:07Z",
    "title_canon_sha256": "0fe9c143d5f61c229520b2d6bfc9c70e2d4bfaee04c4c96b8ecf1962720a2489"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.02641",
    "kind": "arxiv",
    "version": 1
  }
}