Pith Number

pith:7SYDN3WE

pith:2010:7SYDN3WEASHAVQTAROVDOUYLEE

not attested not anchored not stored refs pending

Economical standard quantum process tomography

Ke Xu, Xiaohua Wu

arxiv:1011.6443 v2 · 2010-11-30 · 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{7SYDN3WEASHAVQTAROVDOUYLEE}

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	2026-05-18T04:22:11.174707Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcb036eec4048e0ac2608baa37530b2125545621f9e70d59423532ffa547f28f

Aliases

arxiv: 1011.6443 · arxiv_version: 1011.6443v2 · doi: 10.48550/arxiv.1011.6443 · pith_short_12: 7SYDN3WEASHA · pith_short_16: 7SYDN3WEASHAVQTA · pith_short_8: 7SYDN3WE

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/7SYDN3WEASHAVQTAROVDOUYLEE \
  | 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: fcb036eec4048e0ac2608baa37530b2125545621f9e70d59423532ffa547f28f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4631d6094da801fb7172f9f86521e54c79694c0c3018e36ca022eff168a0276",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-11-30T02:40:02Z",
    "title_canon_sha256": "59201c2cbcc3364373ef4e8663fe49510a968c5fc3b8c45099282f9259d743b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1011.6443",
    "kind": "arxiv",
    "version": 2
  }
}