Pith Number

pith:QD6QES4U

pith:2003:QD6QES4UUAMH2GJI6IEFJDUQ2X

not attested not anchored not stored refs pending

Quantum nondemolition measurement of a single electron spin in a quantum dot

Mitsuro Sugita, Susumu Machida, Yoshihisa Yamamoto

arxiv:quant-ph/0301064 v1 · 2003-01-15 · 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{QD6QES4UUAMH2GJI6IEFJDUQ2X}

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	2026-07-04T14:46:05.903857Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80fd024b94a0187d1928f208548e90d5f27eebb6fa3225f86bcc1e0a8e9147a8

Aliases

arxiv: quant-ph/0301064 · arxiv_version: quant-ph/0301064v1 · doi: 10.48550/arxiv.quant-ph/0301064 · pith_short_12: QD6QES4UUAMH · pith_short_16: QD6QES4UUAMH2GJI · pith_short_8: QD6QES4U

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/QD6QES4UUAMH2GJI6IEFJDUQ2X \
  | 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: 80fd024b94a0187d1928f208548e90d5f27eebb6fa3225f86bcc1e0a8e9147a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6195adc0497818f6fede3ba5f465d8a5d9bded549226f029f6db2feb3d68ec6b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-01-15T06:11:33Z",
    "title_canon_sha256": "afb10de6ffbe42c7e49714140375f27216b5c15283a9279f7e67e36e684dd6de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0301064",
    "kind": "arxiv",
    "version": 1
  }
}