Pith Number

pith:ZYDY5GPZ

pith:2015:ZYDY5GPZJDIUO7TBHGASLFZKTY

not attested not anchored not stored refs pending

A Tight Lower Bound for the BB84-states Quantum-Position-Verification Protocol

Fr\'ed\'eric Grosshans, J\'er\'emy Ribeiro

arxiv:1504.07171 v3 · 2015-04-27 · 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{ZYDY5GPZJDIUO7TBHGASLFZKTY}

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 bounds on non-local computation from controllable correlation

Receipt and verification

First computed	2026-05-18T01:55:41.550821Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce078e99f948d1477e61398125972a9e0cfc0cf4437b2879f760c6a1eab98e40

Aliases

arxiv: 1504.07171 · arxiv_version: 1504.07171v3 · doi: 10.48550/arxiv.1504.07171 · pith_short_12: ZYDY5GPZJDIU · pith_short_16: ZYDY5GPZJDIUO7TB · pith_short_8: ZYDY5GPZ

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/ZYDY5GPZJDIUO7TBHGASLFZKTY \
  | 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: ce078e99f948d1477e61398125972a9e0cfc0cf4437b2879f760c6a1eab98e40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cba4c8298670148ab103a24738680f15da852dc08de8b191666dd41a8bc150ef",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-27T17:29:02Z",
    "title_canon_sha256": "078ad2216ef6be6fe9b8b4d489418a841b2236933256e552e649f582f69f1848"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.07171",
    "kind": "arxiv",
    "version": 3
  }
}