Pith Number

pith:A4P5KSJD

pith:2020:A4P5KSJD7QHK7MGHPG2MEL5QPL

not attested not anchored not stored refs pending

Scalable multiphoton quantum metrology with neither pre- nor post-selected measurements

Adriana E. Lita, Chenglong You, Emanuel Knill, Mingyuan Hong, Omar S. Magana-Loaiza, Peter Bierhorst, Richard P. Mirin, Sae Woo Nam, Scott Glancy, Steve Kolthammer, Thomas Gerrits

arxiv:2011.02454 v2 · 2020-11-04 · 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{A4P5KSJD7QHK7MGHPG2MEL5QPL}

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	2026-07-05T03:52:25.178087Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

071fd54923fc0eafb0c779b4c22fb07afce1581cda7c08aba94eb7cf3ed504f1

Aliases

arxiv: 2011.02454 · arxiv_version: 2011.02454v2 · doi: 10.48550/arxiv.2011.02454 · pith_short_12: A4P5KSJD7QHK · pith_short_16: A4P5KSJD7QHK7MGH · pith_short_8: A4P5KSJD

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/A4P5KSJD7QHK7MGHPG2MEL5QPL \
  | 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: 071fd54923fc0eafb0c779b4c22fb07afce1581cda7c08aba94eb7cf3ed504f1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e403d297fbb85abc45af05e26cdbf2266e90458b2a02cb7d84fb4a4eb6198f9e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-11-04T18:11:33Z",
    "title_canon_sha256": "ef55728ef1b8f0c6fff3a54b8b6479a2455cad45ef74d56926921a3e0fe8d232"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2011.02454",
    "kind": "arxiv",
    "version": 2
  }
}