Pith Number

pith:NGGCKWQ6

pith:2015:NGGCKWQ6NBXCSYI22B6PAQFZQS

not attested not anchored not stored refs pending

Tight state-independent uncertainty relations for qubits

Alastair A. Abbott, Cyril Branciard, Michael J. W. Hall, Pierre-Louis Alzieu

arxiv:1512.02383 v2 · 2015-12-08 · 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{NGGCKWQ6NBXCSYI22B6PAQFZQS}

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	2026-05-18T01:20:01.077148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

698c255a1e686e29611ad07cf040b984b85798c7b0c4d9bedbdf4a28f6eb6922

Aliases

arxiv: 1512.02383 · arxiv_version: 1512.02383v2 · doi: 10.48550/arxiv.1512.02383 · pith_short_12: NGGCKWQ6NBXC · pith_short_16: NGGCKWQ6NBXCSYI2 · pith_short_8: NGGCKWQ6

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/NGGCKWQ6NBXCSYI22B6PAQFZQS \
  | 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: 698c255a1e686e29611ad07cf040b984b85798c7b0c4d9bedbdf4a28f6eb6922

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2ce0ef74072d5abc1fb7d4439ae8ef4f5f5126e5484b3c768fd8b83d5fd9e5a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-08T09:54:05Z",
    "title_canon_sha256": "62d497767ecb3b5ed2419ae0686f8b76fdbacea92758b4cc75f20c707c07df9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02383",
    "kind": "arxiv",
    "version": 2
  }
}