Pith Number

pith:6JLE5JM6

pith:2020:6JLE5JM64ACPX7QVIUYCOWEIGW

not attested not anchored not stored refs pending

Using Quantum Metrological Bounds in Quantum Error Correction: A Simple Proof of the Approximate Eastin-Knill Theorem

Aleksander Kubica, Rafal Demkowicz-Dobrzanski

arxiv:2004.11893 v1 · 2020-04-24 · 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{6JLE5JM64ACPX7QVIUYCOWEIGW}

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	2026-07-05T02:33:17.175305Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2564ea59ee004fbfe15453027588835ab985017c6186e7097144c3d25c1d0bd

Aliases

arxiv: 2004.11893 · arxiv_version: 2004.11893v1 · doi: 10.48550/arxiv.2004.11893 · pith_short_12: 6JLE5JM64ACP · pith_short_16: 6JLE5JM64ACPX7QV · pith_short_8: 6JLE5JM6

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/6JLE5JM64ACPX7QVIUYCOWEIGW \
  | 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: f2564ea59ee004fbfe15453027588835ab985017c6186e7097144c3d25c1d0bd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "90524cc24a0abf89ee506a00404bc834e97b0e7421a5b7971792a577ada77812",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-04-24T17:58:10Z",
    "title_canon_sha256": "5fef4e69a75d298874850997dbdc15977feb0d0c9f53a0dee65cc4e3b92018c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.11893",
    "kind": "arxiv",
    "version": 1
  }
}