Pith Number

pith:K52DURWV

pith:2003:K52DURWVETHIOEK53FVJ4TJBPQ

not attested not anchored not stored refs pending

Comment on "Entanglement Measure for Composite Systems"

Yu Shi

arxiv:quant-ph/0309035 v1 · 2003-09-03 · 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{K52DURWVETHIOEK53FVJ4TJBPQ}

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	2026-07-04T14:46:24.067043Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57743a46d524ce87115dd96a9e4d217c15a09126597c77b5ad6040cc985228cf

Aliases

arxiv: quant-ph/0309035 · arxiv_version: quant-ph/0309035v1 · doi: 10.48550/arxiv.quant-ph/0309035 · pith_short_12: K52DURWVETHI · pith_short_16: K52DURWVETHIOEK5 · pith_short_8: K52DURWV

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/K52DURWVETHIOEK53FVJ4TJBPQ \
  | 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: 57743a46d524ce87115dd96a9e4d217c15a09126597c77b5ad6040cc985228cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa4b8862aac5834045c2a02727e7b9c6fdec11e718a0cd0850d7de30446603c1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2003-09-03T01:41:42Z",
    "title_canon_sha256": "c4f1bc3f6819a46b5b4257c5b42cfef97e8e68d2322ba6de8ea58319344fdc78"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0309035",
    "kind": "arxiv",
    "version": 1
  }
}