Pith Number

pith:OIBCGZE5

pith:2012:OIBCGZE5E4RQ3ZWFZDUTKZ2IJA

not attested not anchored not stored refs pending

Strategies for enhancing quantum entanglement by local photon subtraction

Animesh Datta, Ian A. Walmsley, Joshua Nunn, Lijian Zhang, Philip J. D. Crowley, Tim J. Bartley

arxiv:1211.0231 v2 · 2012-11-01 · 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{OIBCGZE5E4RQ3ZWFZDUTKZ2IJA}

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	2026-05-18T03:33:13.746660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

720223649d27230de6c5c8e93567484821aac7c8fa090221e9320965ecabab4b

Aliases

arxiv: 1211.0231 · arxiv_version: 1211.0231v2 · doi: 10.48550/arxiv.1211.0231 · pith_short_12: OIBCGZE5E4RQ · pith_short_16: OIBCGZE5E4RQ3ZWF · pith_short_8: OIBCGZE5

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/OIBCGZE5E4RQ3ZWFZDUTKZ2IJA \
  | 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: 720223649d27230de6c5c8e93567484821aac7c8fa090221e9320965ecabab4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e243df7fabbd697c57b52fa7e3d5bb11ba195e27ef529f7074f14e6dc251476",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-11-01T17:22:50Z",
    "title_canon_sha256": "a27bddaea3e1ab44d390f439ad6d61b431bb794853b09699473816407016485f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0231",
    "kind": "arxiv",
    "version": 2
  }
}