Pith Number

pith:IMYH2REQ

pith:2020:IMYH2REQI662UB3MXFMIE2NM2K

not attested not anchored not stored refs pending

Upper bounds on device-independent quantum key distribution

Karol Horodecki, Matthias Christandl, Roberto Ferrara

arxiv:2005.13511 v3 · 2020-05-27 · 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{IMYH2REQI662UB3MXFMIE2NM2K}

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	2026-07-05T02:34:40.015605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43307d449047bdaa076cb9588269acd2805ec2f2ded1c3d0425b38ab8d35452d

Aliases

arxiv: 2005.13511 · arxiv_version: 2005.13511v3 · doi: 10.48550/arxiv.2005.13511 · pith_short_12: IMYH2REQI662 · pith_short_16: IMYH2REQI662UB3M · pith_short_8: IMYH2REQ

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/IMYH2REQI662UB3MXFMIE2NM2K \
  | 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: 43307d449047bdaa076cb9588269acd2805ec2f2ded1c3d0425b38ab8d35452d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6059b011c27ad899b4eeeffa35435e12dfe44839da22a69bf44de0a57a6d79b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-05-27T17:41:38Z",
    "title_canon_sha256": "05198b9a86a1a38a486b3cb9149e8e0e0da8f134b1678ef276ea839a904af764"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.13511",
    "kind": "arxiv",
    "version": 3
  }
}