Pith Number

pith:YFW6YNBE

pith:2016:YFW6YNBEIHY4MTYOUJDXMGTIPX

not attested not anchored not stored refs pending

Geometric measure of entanglement of symmetric d-qubits is polynomial-time computable

Li Wang, Shmuel Friedland

arxiv:1608.01354 v2 · 2016-08-03 · math.RA · math-ph · math.MP · 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{YFW6YNBEIHY4MTYOUJDXMGTIPX}

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	2026-05-18T00:49:32.285580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c16dec342441f1c64f0ea247761a687de859d05af81c04f4a8c30ae0d28b2e8d

Aliases

arxiv: 1608.01354 · arxiv_version: 1608.01354v2 · doi: 10.48550/arxiv.1608.01354 · pith_short_12: YFW6YNBEIHY4 · pith_short_16: YFW6YNBEIHY4MTYO · pith_short_8: YFW6YNBE

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/YFW6YNBEIHY4MTYOUJDXMGTIPX \
  | 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: c16dec342441f1c64f0ea247761a687de859d05af81c04f4a8c30ae0d28b2e8d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "56879b4801f4d24bb73e51d24d8d7ab22a88bdab8c9e1ff14a664554a930b4e3",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.RA",
    "submitted_at": "2016-08-03T21:04:46Z",
    "title_canon_sha256": "c1b0840f53ccf14acc4611b241e09e910e1af6b5964718e62dab763b2dc5ec3c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.01354",
    "kind": "arxiv",
    "version": 2
  }
}