Pith Number

pith:EW66OZ7A

pith:2021:EW66OZ7ADZTSEFRVQCY4T2ILZI

not attested not anchored not stored refs pending

The Virtual Quantum Optics Laboratory

Brian R. La Cour, Evan Ellis, Gabriel Ko, Maria Maynard, Parth Shroff

arxiv:2105.07300 v1 · 2021-05-15 · 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{EW66OZ7ADZTSEFRVQCY4T2ILZI}

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	2026-07-05T05:08:02.755309Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25bde767e01e6722163580b1c9e90bca2a5aa5da0a0b4be6876b50b62540f3dc

Aliases

arxiv: 2105.07300 · arxiv_version: 2105.07300v1 · doi: 10.48550/arxiv.2105.07300 · pith_short_12: EW66OZ7ADZTS · pith_short_16: EW66OZ7ADZTSEFRV · pith_short_8: EW66OZ7A

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/EW66OZ7ADZTSEFRVQCY4T2ILZI \
  | 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: 25bde767e01e6722163580b1c9e90bca2a5aa5da0a0b4be6876b50b62540f3dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "333570e226e04c0729ce83c756308667169971756191638a8ce15067d61d38d9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-05-15T22:18:11Z",
    "title_canon_sha256": "c993d7f9e6685bd2d904be73164fbb1c79e9a1c61e528dc50938ed3506123c26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.07300",
    "kind": "arxiv",
    "version": 1
  }
}