Pith Number

pith:DRILTD5T

pith:2016:DRILTD5TPW75AEZL2XOWJHLGPL

not attested not anchored not stored refs pending

Quantum automata cannot detect biased coins, even in the limit

Guy Kindler, Ryan O`Donnell

arxiv:1610.03543 v1 · 2016-10-11 · 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{DRILTD5TPW75AEZL2XOWJHLGPL}

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	2026-05-18T01:02:30.049639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c50b98fb37dbfd0132bd5dd649d667ac1a47a4d6025d3db240bcd934ae5cf1b

Aliases

arxiv: 1610.03543 · arxiv_version: 1610.03543v1 · doi: 10.48550/arxiv.1610.03543 · pith_short_12: DRILTD5TPW75 · pith_short_16: DRILTD5TPW75AEZL · pith_short_8: DRILTD5T

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/DRILTD5TPW75AEZL2XOWJHLGPL \
  | 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: 1c50b98fb37dbfd0132bd5dd649d667ac1a47a4d6025d3db240bcd934ae5cf1b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a89b7cee9b98282870907ea7fd78d1a2cfc083eff8a66cbe59e2303670b38c8",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2016-10-11T21:52:05Z",
    "title_canon_sha256": "107b3555aa7465f10757a047bbfb4d83b01fc617d0cccf754c9ce4b9f60aebe9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1610.03543",
    "kind": "arxiv",
    "version": 1
  }
}