Pith Number

pith:RA5EPNQM

pith:2020:RA5EPNQMGHB6523GSAUXQLBV3P

not attested not anchored not stored refs pending

Direct observation of deterministic macroscopic entanglement

Alex Kwiatkowski, Emanuel Knill, Ezad Shojaee, Florent Lecocq, Gabriel A. Peterson, John D. Teufel, Jos\'e Aumentado, Katarina Cicak, Raymond W. Simmonds, Scott Glancy, Shawn Geller, Shlomi Kotler

arxiv:2004.05515 v2 · 2020-04-12 · 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{RA5EPNQMGHB6523GSAUXQLBV3P}

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	2026-07-05T03:11:23.742410Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

883a47b60c31c3eeeb669029782c35dbf9587b2695a56ac41d946091131fd325

Aliases

arxiv: 2004.05515 · arxiv_version: 2004.05515v2 · doi: 10.48550/arxiv.2004.05515 · pith_short_12: RA5EPNQMGHB6 · pith_short_16: RA5EPNQMGHB6523G · pith_short_8: RA5EPNQM

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/RA5EPNQMGHB6523GSAUXQLBV3P \
  | 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: 883a47b60c31c3eeeb669029782c35dbf9587b2695a56ac41d946091131fd325

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fffdd409b09bcdbebaf498f192b84af9a3716226ad25ac29f04703832a6faec2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-04-12T00:55:33Z",
    "title_canon_sha256": "c35eadc370a5971020805f4874932af3344602bc75a2e9abd3b78abb890cf46e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.05515",
    "kind": "arxiv",
    "version": 2
  }
}