Pith Number

pith:7I7T4SRZ

pith:2019:7I7T4SRZZNLY7DVQPYRTN6H2RX

not attested not anchored not stored refs pending

Approximating Unitary Preparations of Orthogonal Black Box States

Joshua Alan Cook

arxiv:1906.10495 v1 · 2019-06-23 · cs.CC · 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{7I7T4SRZZNLY7DVQPYRTN6H2RX}

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	2026-05-17T23:42:16.216584Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa3f3e4a39cb578f8eb07e2336f8fa8dda4813e3dcdd0681e82a29f82be97f66

Aliases

arxiv: 1906.10495 · arxiv_version: 1906.10495v1 · doi: 10.48550/arxiv.1906.10495 · pith_short_12: 7I7T4SRZZNLY · pith_short_16: 7I7T4SRZZNLY7DVQ · pith_short_8: 7I7T4SRZ

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/7I7T4SRZZNLY7DVQPYRTN6H2RX \
  | 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: fa3f3e4a39cb578f8eb07e2336f8fa8dda4813e3dcdd0681e82a29f82be97f66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ebe8e640490e2a510899959d694348c81cc93cb471df6a41f7b6f4424892c8df",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2019-06-23T01:21:52Z",
    "title_canon_sha256": "3ba319239a1292b3a4ba3ab26033258b5e0a54a367dbced23c943168dac6e6ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.10495",
    "kind": "arxiv",
    "version": 1
  }
}