Pith Number

pith:NWEK4MT2

pith:2023:NWEK4MT2Y3CQXW6JLFUBBSCXL5

not attested not anchored not stored refs pending

stateQIP = statePSPACE

Henry Yuen, Tony Metger

arxiv:2301.07730 v2 · 2023-01-18 · quant-ph · cs.CC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NWEK4MT2Y3CQXW6JLFUBBSCXL5}

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.

Cited by

1 paper in Pith

Optimal fidelity estimation when one state is pure via algorithmic Uhlmann transform

Receipt and verification

First computed	2026-07-05T05:59:22.978183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d88ae327ac6c50bdbc9596810c8575f5c4dde438365c03f9951ba2371a57ec0

Aliases

arxiv: 2301.07730 · arxiv_version: 2301.07730v2 · doi: 10.48550/arxiv.2301.07730 · pith_short_12: NWEK4MT2Y3CQ · pith_short_16: NWEK4MT2Y3CQXW6J · pith_short_8: NWEK4MT2

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/NWEK4MT2Y3CQXW6JLFUBBSCXL5 \
  | 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: 6d88ae327ac6c50bdbc9596810c8575f5c4dde438365c03f9951ba2371a57ec0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "75042a69da153d103ed5478395a62068752329cdfe7020316faee6d4a136940e",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2023-01-18T19:00:17Z",
    "title_canon_sha256": "9835d61d316d77b9b67187bd8b268e34c2a86a4c72837b71ceba1345c68729a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.07730",
    "kind": "arxiv",
    "version": 2
  }
}