Pith Number

pith:RL45RAKF

pith:2009:RL45RAKFRH4YGPVJF67I32K6FC

not attested not anchored not stored refs pending

Entropic uncertainty relations - A survey

Andreas Winter, Stephanie Wehner

arxiv:0907.3704 v1 · 2009-07-21 · 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{RL45RAKFRH4YGPVJF67I32K6FC}

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	2026-05-18T04:23:21.297642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8af9d8814589f9833ea92fbe8de95e289a99c3bf99f53fb2321360b16b2641c0

Aliases

arxiv: 0907.3704 · arxiv_version: 0907.3704v1 · doi: 10.48550/arxiv.0907.3704 · pith_short_12: RL45RAKFRH4Y · pith_short_16: RL45RAKFRH4YGPVJ · pith_short_8: RL45RAKF

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/RL45RAKFRH4YGPVJF67I32K6FC \
  | 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: 8af9d8814589f9833ea92fbe8de95e289a99c3bf99f53fb2321360b16b2641c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e315491c58d3bec374ec6eb6ae60129a4a9dc1dfccc41e592199689cdb458221",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-07-21T19:05:25Z",
    "title_canon_sha256": "d6744bf3d61f5382b5316dc2b1f17055a6fbd8e94dd92e560c6ab2f013d7bae3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.3704",
    "kind": "arxiv",
    "version": 1
  }
}