Pith Number

pith:DWP4FWGP

pith:2012:DWP4FWGPFXFYF76YNTSLWHDVBB

not attested not anchored not stored refs pending

Ideal state discrimination with an O(1)-qubit quantum computer

Michael Zwolak, Robin Blume-Kohout, Sarah Croke

arxiv:1201.6625 v1 · 2012-01-31 · 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{DWP4FWGPFXFYF76YNTSLWHDVBB}

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	2026-05-18T04:03:30.001343Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d9fc2d8cf2dcb82ffd86ce4bb1c7508407519933478a5234afcc63252927a16

Aliases

arxiv: 1201.6625 · arxiv_version: 1201.6625v1 · doi: 10.48550/arxiv.1201.6625 · pith_short_12: DWP4FWGPFXFY · pith_short_16: DWP4FWGPFXFYF76Y · pith_short_8: DWP4FWGP

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/DWP4FWGPFXFYF76YNTSLWHDVBB \
  | 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: 1d9fc2d8cf2dcb82ffd86ce4bb1c7508407519933478a5234afcc63252927a16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa9b09e806076ce295866bc3066235edac60e2f6d031f13d604cadf372de4361",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-01-31T17:17:42Z",
    "title_canon_sha256": "055fd9aca542c2cfac1c005c7f6d1292e1e4b6d081c79449e12be058fe0052fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.6625",
    "kind": "arxiv",
    "version": 1
  }
}