Pith Number

pith:FOA2EV67

pith:2012:FOA2EV67DXJXYED5533W3NIAYR

not attested not anchored not stored refs pending

Witnessed entanglement and the geometric measure of quantum discord

Reinaldo O. Vianna, Thiago O. Maciel, Tiago Debarba

arxiv:1207.1298 v3 · 2012-07-05 · 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{FOA2EV67DXJXYED5533W3NIAYR}

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	2026-05-18T03:44:48.904701Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2b81a257df1dd37c107deef76db500c448889e5f6ea7a04fc71c29d15e98cd59

Aliases

arxiv: 1207.1298 · arxiv_version: 1207.1298v3 · doi: 10.48550/arxiv.1207.1298 · pith_short_12: FOA2EV67DXJX · pith_short_16: FOA2EV67DXJXYED5 · pith_short_8: FOA2EV67

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/FOA2EV67DXJXYED5533W3NIAYR \
  | 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: 2b81a257df1dd37c107deef76db500c448889e5f6ea7a04fc71c29d15e98cd59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb68dd132ce27c3b01af7c52c10abe7f6df24ca652f4274d9cd072a4855651fd",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/publicdomain/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-07-05T17:01:36Z",
    "title_canon_sha256": "6975a2b0eda4e6c73419527f1f455891e0774b3e527b3f474eb0db7c37714871"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1298",
    "kind": "arxiv",
    "version": 3
  }
}