Pith Number

pith:HKSFWX4O

pith:2010:HKSFWX4OVYLXKFKF3WRN4YVTTA

not attested not anchored not stored refs pending

Efficient Direct Tomography for Matrix Product States

David Poulin, Olivier Landon-Cardinal, Yi-Kai Liu

arxiv:1002.4632 v1 · 2010-02-24 · 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{HKSFWX4OVYLXKFKF3WRN4YVTTA}

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

Lower overhead fault-tolerant building blocks for noisy quantum computers

Receipt and verification

First computed	2026-07-04T17:22:26.103237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3aa45b5f8eae17751545dda2de62b3983ddaba5cabe5d9ed85a9241d51dd9e37

Aliases

arxiv: 1002.4632 · arxiv_version: 1002.4632v1 · doi: 10.48550/arxiv.1002.4632 · pith_short_12: HKSFWX4OVYLX · pith_short_16: HKSFWX4OVYLXKFKF · pith_short_8: HKSFWX4O

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/HKSFWX4OVYLXKFKF3WRN4YVTTA \
  | 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: 3aa45b5f8eae17751545dda2de62b3983ddaba5cabe5d9ed85a9241d51dd9e37

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76bac773618756bed8c14dac8dfabe64c89d45e2ad131ce507c6ed34f50227f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2010-02-24T21:17:32Z",
    "title_canon_sha256": "4c585b9cc26364168ffb6a3fd8130697d900a6b3ad0d768c43bf188f307cc713"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.4632",
    "kind": "arxiv",
    "version": 1
  }
}