Pith Number

pith:S6EZ4XAA

pith:2025:S6EZ4XAAOUV5FJVVIAJ4QFMQM2

not attested not anchored not stored refs pending

Sketch Tomography: Hybridizing Classical Shadow and Matrix Product State

Haoxuan Chen, Lexing Ying, Xun Tang, YueHaw Khoo

arxiv:2512.03333 v2 · 2025-12-03 · quant-ph · cs.NA · math.NA · math.ST · physics.comp-ph · stat.ML · stat.TH

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S6EZ4XAAOUV5FJVVIAJ4QFMQM2}

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.

Cited by

1 paper in Pith

Online Riemannian Gradient Descent for Quantum State Tomography with Matrix Product Operators

Receipt and verification

First computed	2026-05-27T01:05:40.592675Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97899e5c00752bd2a6b54013c81590669b5c6af1792d874cce2185f6d30c1cb0

Aliases

arxiv: 2512.03333 · arxiv_version: 2512.03333v2 · doi: 10.48550/arxiv.2512.03333 · pith_short_12: S6EZ4XAAOUV5 · pith_short_16: S6EZ4XAAOUV5FJVV · pith_short_8: S6EZ4XAA

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/S6EZ4XAAOUV5FJVVIAJ4QFMQM2 \
  | 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: 97899e5c00752bd2a6b54013c81590669b5c6af1792d874cce2185f6d30c1cb0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6951185ce0ca164202a05bb1c25362a68b8a1a144c2a993c257fefbb45832f2d",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA",
      "math.ST",
      "physics.comp-ph",
      "stat.ML",
      "stat.TH"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-12-03T00:54:00Z",
    "title_canon_sha256": "46428967b4142e7d66e6bb1f69bff67a14ab991ec750f8075c6602f684923912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2512.03333",
    "kind": "arxiv",
    "version": 2
  }
}