Pith Number

pith:YJS5RJEE

pith:2009:YJS5RJEET46QFLWACCVWXNZ7G2

not attested not anchored not stored refs pending

Quantitative verification of entanglement and fidelities from incomplete measurement data

Harald Wunderlich, Martin B. Plenio

arxiv:0902.2093 v2 · 2009-02-12 · 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{YJS5RJEET46QFLWACCVWXNZ7G2}

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	2026-05-18T02:14:48.183173Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c265d8a4849f3d02aec010ab6bb73f3691d5be41e9a424d4596f94fb80fdb89a

Aliases

arxiv: 0902.2093 · arxiv_version: 0902.2093v2 · doi: 10.48550/arxiv.0902.2093 · pith_short_12: YJS5RJEET46Q · pith_short_16: YJS5RJEET46QFLWA · pith_short_8: YJS5RJEE

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/YJS5RJEET46QFLWACCVWXNZ7G2 \
  | 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: c265d8a4849f3d02aec010ab6bb73f3691d5be41e9a424d4596f94fb80fdb89a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "da2fde8047785cb9a0d50431500fb4ba75fabb4246f8a585ea4d1f989027e2b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2009-02-12T12:18:56Z",
    "title_canon_sha256": "b81b2339910277829db82e4b3821fe0ec6481a9bd4fa4cc3fa98343633f8e382"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.2093",
    "kind": "arxiv",
    "version": 2
  }
}