Pith Number

pith:5FM7CT6J

pith:2026:5FM7CT6J7QAOUIQVZMQNUE5WOW

not attested not anchored not stored refs pending

Online Shadow Tomography Matching the Classical Bounds

Angelos Pelecanos, John Wright, Ryan O'Donnell, Sitan Chen

arxiv:2607.29686 v1 · 2026-07-31 · quant-ph · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5FM7CT6J7QAOUIQVZMQNUE5WOW}

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	2026-08-03T01:41:44.786724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e959f14fc9fc00ea2215cb20da13b67583990e9e4e2a9c5b51da64a00f7c4547

Aliases

arxiv: 2607.29686 · arxiv_version: 2607.29686v1 · doi: 10.48550/arxiv.2607.29686 · pith_short_12: 5FM7CT6J7QAO · pith_short_16: 5FM7CT6J7QAOUIQV · pith_short_8: 5FM7CT6J

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/5FM7CT6J7QAOUIQVZMQNUE5WOW \
  | 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: e959f14fc9fc00ea2215cb20da13b67583990e9e4e2a9c5b51da64a00f7c4547

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae08a9d551af2a72cf9251d620e96333f2d3d9aab435aa5ecf30010873a4afec",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-31T17:59:54Z",
    "title_canon_sha256": "ae6ee8706e8906f030e8372f961bcde506c0ffd602a93a31e5cf63f3c7790af2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.29686",
    "kind": "arxiv",
    "version": 1
  }
}