Pith Number

pith:DAVKYEFI

pith:2016:DAVKYEFIQ6WWJJDUBDGKQUVOKT

not attested not anchored not stored refs pending

Deriving Grover's lower bound from simple physical principles

Ciar\'an M. Lee, John H. Selby

arxiv:1604.03118 v2 · 2016-04-11 · 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{DAVKYEFIQ6WWJJDUBDGKQUVOKT}

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	2026-05-18T01:02:52.246996Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

182aac10a887ad64a47408cca852ae54e8d514a6d662b7482a955cd7d13e6db4

Aliases

arxiv: 1604.03118 · arxiv_version: 1604.03118v2 · doi: 10.48550/arxiv.1604.03118 · pith_short_12: DAVKYEFIQ6WW · pith_short_16: DAVKYEFIQ6WWJJDU · pith_short_8: DAVKYEFI

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/DAVKYEFIQ6WWJJDUBDGKQUVOKT \
  | 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: 182aac10a887ad64a47408cca852ae54e8d514a6d662b7482a955cd7d13e6db4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86bdcf662bc977040eb943463988ec5d0fc6266ed6d1ea39bd238556e2a20836",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2016-04-11T20:00:07Z",
    "title_canon_sha256": "a9e0f46eb202bf9fe0cbba0aa17fc5ff4999972cb0c4ce19e02cfaba790e70dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1604.03118",
    "kind": "arxiv",
    "version": 2
  }
}