Pith Number

pith:EK3THGEK

pith:2025:EK3THGEKGRZX447UHSNJLZN5NJ

not attested not anchored not stored refs pending

Instance-Optimal Quantum State Certification with Entangled Measurements

Chirag Wadhwa, Ryan O'Donnell

arxiv:2507.06010 v1 · 2025-07-08 · quant-ph · cs.DS · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EK3THGEKGRZX447UHSNJLZN5NJ}

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	2026-07-05T11:33:39.888206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22b733988a34737e73f43c9a95e5bd6a40fd5e29d15c8dfe82fd4c408fa7cade

Aliases

arxiv: 2507.06010 · arxiv_version: 2507.06010v1 · doi: 10.48550/arxiv.2507.06010 · pith_short_12: EK3THGEKGRZX · pith_short_16: EK3THGEKGRZX447U · pith_short_8: EK3THGEK

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/EK3THGEKGRZX447UHSNJLZN5NJ \
  | 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: 22b733988a34737e73f43c9a95e5bd6a40fd5e29d15c8dfe82fd4c408fa7cade

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5b16f316c6301674ddf851dd63cdcd063c7fc1075726a52925945910e02e222a",
    "cross_cats_sorted": [
      "cs.DS",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-07-08T14:15:46Z",
    "title_canon_sha256": "363eb742bb7e0039d3bae84ec2c7df543b599f6519ad41c85ee97b3af9ae1d24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.06010",
    "kind": "arxiv",
    "version": 1
  }
}