Pith Number

pith:7YRVLIY6

pith:2020:7YRVLIY645ROQF2S5JNSJ3BQSM

not attested not anchored not stored refs pending

Classical proofs of quantum knowledge

Thomas Vidick, Tina Zhang

arxiv:2005.01691 v2 · 2020-05-04 · 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{7YRVLIY645ROQF2S5JNSJ3BQSM}

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	2026-07-05T02:07:46.582431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe2355a31ee762e81752ea5b24ec309337b6e96d3af76a3a364fa2ce862838d2

Aliases

arxiv: 2005.01691 · arxiv_version: 2005.01691v2 · doi: 10.48550/arxiv.2005.01691 · pith_short_12: 7YRVLIY645RO · pith_short_16: 7YRVLIY645ROQF2S · pith_short_8: 7YRVLIY6

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/7YRVLIY645ROQF2S5JNSJ3BQSM \
  | 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: fe2355a31ee762e81752ea5b24ec309337b6e96d3af76a3a364fa2ce862838d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d8806ff7187f6dfedcc2b9f11763a311d775937b0dab2ffa9a1de12c4e270e45",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2020-05-04T17:45:21Z",
    "title_canon_sha256": "21f64e4d3263fe9b5fcb6e38dc37789c9040b80c2eccff91f92c42aacdabe98d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.01691",
    "kind": "arxiv",
    "version": 2
  }
}