Pith Number

pith:JFSSOQNU

pith:2015:JFSSOQNUS3FCJXXANBPPQ4KKRV

not attested not anchored not stored refs pending

On the Optimality of Square Root Measurements in Quantum State Discrimination

Gianfranco Pierobon, Nicola Dalla Pozza

arxiv:1504.04908 v1 · 2015-04-20 · 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{JFSSOQNUS3FCJXXANBPPQ4KKRV}

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	2026-05-18T02:04:01.013554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

49652741b496ca24dee0685ef8714a8d71a63182d1f7947d51ebbd8c5adf3bd6

Aliases

arxiv: 1504.04908 · arxiv_version: 1504.04908v1 · doi: 10.48550/arxiv.1504.04908 · pith_short_12: JFSSOQNUS3FC · pith_short_16: JFSSOQNUS3FCJXXA · pith_short_8: JFSSOQNU

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/JFSSOQNUS3FCJXXANBPPQ4KKRV \
  | 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: 49652741b496ca24dee0685ef8714a8d71a63182d1f7947d51ebbd8c5adf3bd6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2963dbe843b702ea8bf04fc8a47de545e99e9a353aa89db16e5dc0c51ae4afb3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-20T01:07:16Z",
    "title_canon_sha256": "b6037133e5f2315848a7deff35e853a5e23a994debb65082242ae3dedaa499b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04908",
    "kind": "arxiv",
    "version": 1
  }
}