Pith Number

pith:M3C4PROR

pith:2011:M3C4PRORI7UPJPJXXR3V5SSQTS

not attested not anchored not stored refs pending

Orthogonal measurements are {\it almost} sufficient for quantum discord of two qubits

Fernando Galve, Gianluca Giorgi, Roberta Zambrini

arxiv:1107.2005 v3 · 2011-07-11 · quant-ph

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M3C4PRORI7UPJPJXXR3V5SSQTS}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:03:32.292951Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

66c5c7c5d147e8f4bd37bc775eca509cac291edb9dadcdec5d0badcb00bb3088

Aliases

arxiv: 1107.2005 · arxiv_version: 1107.2005v3 · doi: 10.48550/arxiv.1107.2005 · pith_short_12: M3C4PRORI7UP · pith_short_16: M3C4PRORI7UPJPJX · pith_short_8: M3C4PROR

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/M3C4PRORI7UPJPJXXR3V5SSQTS \
  | 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: 66c5c7c5d147e8f4bd37bc775eca509cac291edb9dadcdec5d0badcb00bb3088

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a87f69804fe8d65079574c4883c70bf766b1f2ef6f603e88eb7d559607528a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2011-07-11T12:04:27Z",
    "title_canon_sha256": "e3fb5d0022ae3785fd0364587d02cc2132b34ab5a853c3a85c04dc5adc0e828e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.2005",
    "kind": "arxiv",
    "version": 3
  }
}