Pith Number

pith:ACDU6KJ7

pith:2015:ACDU6KJ7VDCFGT4FL5LO77W7ZJ

not attested not anchored not stored refs pending

Evaluation of entanglement measures by a single observable

Chengjie Zhang, C.H. Oh, Haidong Yuan, Qing Chen, Sixia Yu

arxiv:1506.01484 v4 · 2015-06-04 · 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{ACDU6KJ7VDCFGT4FL5LO77W7ZJ}

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	2026-05-18T01:01:52.254698Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00874f293fa8c4534f855f56effedfca547985ad836ba73f8addb83969341ffe

Aliases

arxiv: 1506.01484 · arxiv_version: 1506.01484v4 · doi: 10.48550/arxiv.1506.01484 · pith_short_12: ACDU6KJ7VDCF · pith_short_16: ACDU6KJ7VDCFGT4F · pith_short_8: ACDU6KJ7

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/ACDU6KJ7VDCFGT4FL5LO77W7ZJ \
  | 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: 00874f293fa8c4534f855f56effedfca547985ad836ba73f8addb83969341ffe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ea2c8d73f5c26aad6b8e342a17436bd5f38ce6d4505899454b1f03d705f7abb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-06-04T07:13:09Z",
    "title_canon_sha256": "dfa6bcdf3d537d36c4b2eed457bf5b764acff9f51694a7a27e24753cace13c13"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01484",
    "kind": "arxiv",
    "version": 4
  }
}