Pith Number

pith:4YLE377X

pith:2019:4YLE377XCE5TVILMEOPXA35AVZ

not attested not anchored not stored refs pending

Efficient learning of quantum noise

Joel J. Wallman, Robin Harper, Steven T. Flammia

arxiv:1907.13022 v2 · 2019-07-30 · 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{4YLE377XCE5TVILMEOPXA35AVZ}

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

Quantum Overlapping Tomography

Receipt and verification

First computed	2026-07-05T02:32:31.054672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6164dfff7113b3aa16c239f706fa0ae6c90d96e7ccdc8c6e363b4b836ad9770

Aliases

arxiv: 1907.13022 · arxiv_version: 1907.13022v2 · doi: 10.48550/arxiv.1907.13022 · pith_short_12: 4YLE377XCE5T · pith_short_16: 4YLE377XCE5TVILM · pith_short_8: 4YLE377X

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/4YLE377XCE5TVILMEOPXA35AVZ \
  | 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: e6164dfff7113b3aa16c239f706fa0ae6c90d96e7ccdc8c6e363b4b836ad9770

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "20567deed5e52f781e7b83806b4aeee2682f6babaa407f789bda787cc3e75b92",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-07-30T15:37:54Z",
    "title_canon_sha256": "4631f4b89cdb6f3eb9b41176c9ec762dd1446bc35861f7488105894b0e972bd6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.13022",
    "kind": "arxiv",
    "version": 2
  }
}