Pith Number

pith:DWS6DTVR

pith:2009:DWS6DTVRDEOZJR7V5NIBAPO5KR

not attested not anchored not stored refs pending

Improving noise threshold for optical quantum computing with the EPR photon source

C. H. Oh, L.-M. Duan, Y.-J. Han, Z.-H. Wei

arxiv:0912.1493 v1 · 2009-12-08 · 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{DWS6DTVRDEOZJR7V5NIBAPO5KR}

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	2026-05-18T02:10:25.706709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1da5e1ceb1191d94c7f5eb50103ddd547d95021808f5dad2c0c0ec439055103f

Aliases

arxiv: 0912.1493 · arxiv_version: 0912.1493v1 · doi: 10.48550/arxiv.0912.1493 · pith_short_12: DWS6DTVRDEOZ · pith_short_16: DWS6DTVRDEOZJR7V · pith_short_8: DWS6DTVR

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/DWS6DTVRDEOZJR7V5NIBAPO5KR \
  | 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: 1da5e1ceb1191d94c7f5eb50103ddd547d95021808f5dad2c0c0ec439055103f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41785eea10afd0499af049f4c6796924d85ed4bbf100f721a52281c3b1ed956c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-12-08T13:28:47Z",
    "title_canon_sha256": "f61c8cefe107b51adcc2191decd7220973c433ea926e3c27ba39e3b4c6c32285"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.1493",
    "kind": "arxiv",
    "version": 1
  }
}