Pith Number

pith:EW3CIQVA

pith:1999:EW3CIQVAZ5YQTMXANWGWRZAL5S

not attested not anchored not stored refs pending

Optimal lower bounds for quantum automata and random access codes

Ashwin Nayak

arxiv:quant-ph/9904093 v3 · 1999-04-27 · 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{EW3CIQVAZ5YQTMXANWGWRZAL5S}

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

Dimension-Free Polylogarithmic Quantum Shadow Tomography from Sequential Pretty-Good Measurements

Receipt and verification

First computed	2026-07-04T14:47:25.331946Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25b62442a0cf7109b2e06d8d68e40becab310b03e17788276f6ba54779c18853

Aliases

arxiv: quant-ph/9904093 · arxiv_version: quant-ph/9904093v3 · doi: 10.48550/arxiv.quant-ph/9904093 · pith_short_12: EW3CIQVAZ5YQ · pith_short_16: EW3CIQVAZ5YQTMXA · pith_short_8: EW3CIQVA

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/EW3CIQVAZ5YQTMXANWGWRZAL5S \
  | 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: 25b62442a0cf7109b2e06d8d68e40becab310b03e17788276f6ba54779c18853

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edf524aa29f17756e290d1884e89cc81984c6b7fd4b3ebe48d19c5c51415cc0c",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-04-27T23:59:48Z",
    "title_canon_sha256": "4c39f7683ec39a7cb783be5ab95a11a02c99f908a9257bee62b098953c509c31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9904093",
    "kind": "arxiv",
    "version": 3
  }
}