Pith Number

pith:CU7EIX3N

pith:2010:CU7EIX3NCF53P6LJT6LVF4DLUY

not attested not anchored not stored refs pending

Scalable quantum register based on coupled electron spins in a room temperature solid

B. Naydenov, D.J. Twitchen, F. Jelezko, F. Rempp, G. Balasubramanian, J. Beck, J. Meijer, J. Twamley, J. Wrachtrup, M.L. Markham, M. Steiner, P. Neumann, R. Kolesov, S. Pezzagna, V. Jacques

arxiv:1004.5090 v1 · 2010-04-28 · 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{CU7EIX3NCF53P6LJT6LVF4DLUY}

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	2026-07-04T17:27:31.403685Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

153e445f6d117bb7f9699f9752f06ba600a1959620f4a268248128b0f3bcc143

Aliases

arxiv: 1004.5090 · arxiv_version: 1004.5090v1 · doi: 10.48550/arxiv.1004.5090 · pith_short_12: CU7EIX3NCF53 · pith_short_16: CU7EIX3NCF53P6LJ · pith_short_8: CU7EIX3N

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/CU7EIX3NCF53P6LJT6LVF4DLUY \
  | 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: 153e445f6d117bb7f9699f9752f06ba600a1959620f4a268248128b0f3bcc143

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "87e91f366eae7eaf0962b9d563b3aaf1ba5d85fcce1f75d3887d46a4bfef590e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-04-28T17:38:14Z",
    "title_canon_sha256": "a7201c47081c39caf6747a8df833dda974de9ae4e13800833f66b6bc291ab135"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.5090",
    "kind": "arxiv",
    "version": 1
  }
}