Pith Number

pith:EFZRIZQ3

pith:2012:EFZRIZQ3Q3V7ZNKTVCAP3LS7Y6

not attested not anchored not stored refs pending

Fine-grained lower limit of entropic uncertainty in the presence of quantum memory

A. S. Majumdar, P. Chowdhury, T. Pramanik

arxiv:1205.0138 v2 · 2012-05-01 · 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{EFZRIZQ3Q3V7ZNKTVCAP3LS7Y6}

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	2026-05-18T03:36:26.878599Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

217314661b86ebfcb553a880fdae5fc78f01f5103dc6f7ca591c9482aa376907

Aliases

arxiv: 1205.0138 · arxiv_version: 1205.0138v2 · doi: 10.48550/arxiv.1205.0138 · pith_short_12: EFZRIZQ3Q3V7 · pith_short_16: EFZRIZQ3Q3V7ZNKT · pith_short_8: EFZRIZQ3

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/EFZRIZQ3Q3V7ZNKTVCAP3LS7Y6 \
  | 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: 217314661b86ebfcb553a880fdae5fc78f01f5103dc6f7ca591c9482aa376907

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15842a33f37c68198764c5235816e44ea036ac8aabb3a5fa9579bce08036792e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-05-01T11:29:31Z",
    "title_canon_sha256": "ad496bc2c47fb6b1a94e1b64d1bc5e0d4ce322e15f51e3476875006d819fa931"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.0138",
    "kind": "arxiv",
    "version": 2
  }
}