Pith Number

pith:QT2B4LMZ

pith:2012:QT2B4LMZ6VUM22VQB4L2EVYNPQ

not attested not anchored not stored refs pending

Maximum-likelihood coherent-state quantum process tomography

Aamir Anis, A. I. Lvovsky

arxiv:1204.5936 v2 · 2012-04-26 · 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{QT2B4LMZ6VUM22VQB4L2EVYNPQ}

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	2026-05-18T03:30:55.469427Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84f41e2d99f568cd6ab00f17a2570d7c2afdfcbdca23438ad61670c4d5e3c463

Aliases

arxiv: 1204.5936 · arxiv_version: 1204.5936v2 · doi: 10.48550/arxiv.1204.5936 · pith_short_12: QT2B4LMZ6VUM · pith_short_16: QT2B4LMZ6VUM22VQ · pith_short_8: QT2B4LMZ

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/QT2B4LMZ6VUM22VQB4L2EVYNPQ \
  | 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: 84f41e2d99f568cd6ab00f17a2570d7c2afdfcbdca23438ad61670c4d5e3c463

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca9bfd925bae4489f2b30e057daf1f326d1612b3d8f5c56381bc1df713cdcc6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-04-26T14:25:06Z",
    "title_canon_sha256": "e24c0e9ba8c855ee54297e385705a0181ecd21647a79d94fa157f0d5c602d4f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5936",
    "kind": "arxiv",
    "version": 2
  }
}