Pith Number

pith:4YW2QGTN

pith:2015:4YW2QGTNVTSKCOS3QYX3LBH3ZV

not attested not anchored not stored refs pending

Reliable and robust entanglement witness

Quanxin Mei, Shan Zhou, Xiao Yuan, Xiongfeng Ma

arxiv:1512.02352 v1 · 2015-12-08 · 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{4YW2QGTNVTSKCOS3QYX3LBH3ZV}

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	2026-05-18T01:16:44.912697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e62da81a6dace4a13a5b862fb584fbcd4f6ee60fc377edb966d241b30fc7526f

Aliases

arxiv: 1512.02352 · arxiv_version: 1512.02352v1 · doi: 10.48550/arxiv.1512.02352 · pith_short_12: 4YW2QGTNVTSK · pith_short_16: 4YW2QGTNVTSKCOS3 · pith_short_8: 4YW2QGTN

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/4YW2QGTNVTSKCOS3QYX3LBH3ZV \
  | 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: e62da81a6dace4a13a5b862fb584fbcd4f6ee60fc377edb966d241b30fc7526f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "348e9e750ca6b0c596c0f1bb4dcb111b80f27f5e8ae71aa5a1708d8afc8de509",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-12-08T06:41:20Z",
    "title_canon_sha256": "5d335d12cf287c26f1b616f766326f396d534fd3d6d597e280a0040cf7218973"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.02352",
    "kind": "arxiv",
    "version": 1
  }
}