Pith Number

pith:45QPSB32

pith:2021:45QPSB32KQBQUZXQZNKLV4GVBT

not attested not anchored not stored refs pending

Quantum Algorithms and Lower Bounds for Linear Regression with Norm Constraints

CWI, CWI), Ronald de Wolf (QuSoft, University of Amsterdam), Yanlin Chen (QuSoft

arxiv:2110.13086 v2 · 2021-10-25 · quant-ph · cs.CC · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{45QPSB32KQBQUZXQZNKLV4GVBT}

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 Learning with Tunable Loss Functions

Receipt and verification

First computed	2026-07-05T04:41:26.512712Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e760f9077a54030a66f0cb54baf0d50cf53b7ff8384f0acacc2faffb867ca561

Aliases

arxiv: 2110.13086 · arxiv_version: 2110.13086v2 · doi: 10.48550/arxiv.2110.13086 · pith_short_12: 45QPSB32KQBQ · pith_short_16: 45QPSB32KQBQUZXQ · pith_short_8: 45QPSB32

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/45QPSB32KQBQUZXQZNKLV4GVBT \
  | 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: e760f9077a54030a66f0cb54baf0d50cf53b7ff8384f0acacc2faffb867ca561

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad7c7cff3c9487e1e7faf2aa7270f4b8fb816c1b915953c705f1b99e3b827ca8",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.DS",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-10-25T16:26:37Z",
    "title_canon_sha256": "a17707e32f5bbd85770ade492cf706ffb06e63f3b15ccf07b08416a56f6dd06c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.13086",
    "kind": "arxiv",
    "version": 2
  }
}