Pith Number

pith:U4IDQJ7C

pith:2017:U4IDQJ7C3SJHEPVVC6UBSWCEVS

not attested not anchored not stored refs pending

A lower bound of concurrence for multipartite quantum systems

Ming Li, Shao-Ming Fei, Xue-Na Zhu

arxiv:1801.00078 v1 · 2017-12-30 · 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{U4IDQJ7C3SJHEPVVC6UBSWCEVS}

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	2026-05-18T00:26:59.520171Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7103827e2dc92723eb517a8195844ac8fd3ccc6eea5fd904612debe27cdf7fd

Aliases

arxiv: 1801.00078 · arxiv_version: 1801.00078v1 · doi: 10.48550/arxiv.1801.00078 · pith_short_12: U4IDQJ7C3SJH · pith_short_16: U4IDQJ7C3SJHEPVV · pith_short_8: U4IDQJ7C

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/U4IDQJ7C3SJHEPVVC6UBSWCEVS \
  | 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: a7103827e2dc92723eb517a8195844ac8fd3ccc6eea5fd904612debe27cdf7fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf904bc2fa584d221fb4c4b882a36ed8dc4d115e3aaeda5592899afdd464bbbe",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-12-30T03:24:22Z",
    "title_canon_sha256": "ce2fd40dffc8acff5e010622f0e7c17ff7c6676dd5551cd3f40270c6c299fba2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.00078",
    "kind": "arxiv",
    "version": 1
  }
}