Pith Number

pith:NDY3IODA

pith:2020:NDY3IODAHCMC7IJNNYVIYLQGA2

not attested not anchored not stored refs pending

Long-lived entanglement generation of nuclear spins using coherent light

Eugene S. Polzik, Ofer Firstenberg, Or Katz, Roy Shaham

arxiv:2002.07030 v1 · 2020-02-17 · quant-ph · physics.atom-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{NDY3IODAHCMC7IJNNYVIYLQGA2}

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	2026-07-05T00:41:10.667334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68f1b4386038982fa12d6e2a8c2e060692943f06c79417381791ad53cd65857a

Aliases

arxiv: 2002.07030 · arxiv_version: 2002.07030v1 · doi: 10.48550/arxiv.2002.07030 · pith_short_12: NDY3IODAHCMC · pith_short_16: NDY3IODAHCMC7IJN · pith_short_8: NDY3IODA

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/NDY3IODAHCMC7IJNNYVIYLQGA2 \
  | 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: 68f1b4386038982fa12d6e2a8c2e060692943f06c79417381791ad53cd65857a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83f9d47e6f3a2e897487f78f483206dac34dd5b6d3333229ea371df7f8bea07a",
    "cross_cats_sorted": [
      "physics.atom-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-02-17T16:25:10Z",
    "title_canon_sha256": "03ccc86e721213b8aab07ae867a56987677c7d529f2c2a17ed198b1b12ccf3fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.07030",
    "kind": "arxiv",
    "version": 1
  }
}