Pith Number

pith:WKEFACVS

pith:2002:WKEFACVSQBPIY6EEWNNW3MQUBX

not attested not anchored not stored refs pending

Lower bound for a class of weak quantum coin flipping protocols

Andris Ambainis

arxiv:quant-ph/0204063 v1 · 2002-04-11 · quant-ph · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WKEFACVSQBPIY6EEWNNW3MQUBX}

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	2026-07-04T14:45:55.366003Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b288500ab2805e8c7884b35b6db2140df50ef308932ecdf414d8bebb04da40ff

Aliases

arxiv: quant-ph/0204063 · arxiv_version: quant-ph/0204063v1 · doi: 10.48550/arxiv.quant-ph/0204063 · pith_short_12: WKEFACVSQBPI · pith_short_16: WKEFACVSQBPIY6EE · pith_short_8: WKEFACVS

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/WKEFACVSQBPIY6EEWNNW3MQUBX \
  | 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: b288500ab2805e8c7884b35b6db2140df50ef308932ecdf414d8bebb04da40ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "42891b019c4734538b7b65df51d30f5cd7c2166f5aa5a6ddbd3a5f1d5398f14d",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-04-11T18:25:01Z",
    "title_canon_sha256": "3fd12f3750016bc0149b61a39d5a4b11ccdcee73bfa18e137473c2d8d8c14f50"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0204063",
    "kind": "arxiv",
    "version": 1
  }
}