Pith Number

pith:E6NWML27

pith:2002:E6NWML27Z35MUZMNIWIOVUJJGJ

not attested not anchored not stored refs pending

A New Protocol and Lower Bounds for Quantum Coin Flipping

Andris Ambainis

arxiv:quant-ph/0204022 v1 · 2002-04-04 · 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{E6NWML27Z35MUZMNIWIOVUJJGJ}

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	2026-07-04T15:11:28.975439Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

279b662f5fcefaca658d4590ead12932781e039e74322463660a4e593a867cb3

Aliases

arxiv: quant-ph/0204022 · arxiv_version: quant-ph/0204022v1 · doi: 10.48550/arxiv.quant-ph/0204022 · pith_short_12: E6NWML27Z35M · pith_short_16: E6NWML27Z35MUZMN · pith_short_8: E6NWML27

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/E6NWML27Z35MUZMNIWIOVUJJGJ \
  | 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: 279b662f5fcefaca658d4590ead12932781e039e74322463660a4e593a867cb3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8dcd4e6fe4620901c96dc52f0c9b2bc96f4821f297587ddd3583eb2c603e814c",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "2002-04-04T21:00:35Z",
    "title_canon_sha256": "88680f08e2338c7ce4f2f83291f16ba8627b2d28daa821c3020c50737047e5c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/0204022",
    "kind": "arxiv",
    "version": 1
  }
}