Pith Number

pith:V4X4V55G

pith:2021:V4X4V55GSKYQCJEWHLUOISOJ3C

not attested not anchored not stored refs pending

Optimal Entanglement Witness for Cooper Pair Splitters

Christian Flindt, Fredrik Brange, Minh Tam

arxiv:2110.04783 v2 · 2021-10-10 · cond-mat.mes-hall · 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{V4X4V55GSKYQCJEWHLUOISOJ3C}

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	2026-07-05T03:43:05.394623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

af2fcaf7a692b10124963ae8e449c9d8a7eb09f8b139e76c1a6b59f2f2645687

Aliases

arxiv: 2110.04783 · arxiv_version: 2110.04783v2 · doi: 10.48550/arxiv.2110.04783 · pith_short_12: V4X4V55GSKYQ · pith_short_16: V4X4V55GSKYQCJEW · pith_short_8: V4X4V55G

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/V4X4V55GSKYQCJEWHLUOISOJ3C \
  | 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: af2fcaf7a692b10124963ae8e449c9d8a7eb09f8b139e76c1a6b59f2f2645687

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "19c911e12fc7d50e7219740d21afce6a017f6be93d1282a2a09865d1005cc153",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2021-10-10T12:53:07Z",
    "title_canon_sha256": "c9b4f7c1cc3969a9511fff75b3f0f6a50863ec6076bf2073f3b6a8311e4963e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.04783",
    "kind": "arxiv",
    "version": 2
  }
}