Pith Number

pith:SPYINKKH

pith:2015:SPYINKKHKUMX4BG4HFPQWZKZ5C

not attested not anchored not stored refs pending

Quantum and classical coin-flipping protocols based on bit-commitment and their point games

Ashwin Nayak, Jamie Sikora, Levent Tun\c{c}el

arxiv:1504.04217 v1 · 2015-04-16 · quant-ph · cs.CR · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SPYINKKHKUMX4BG4HFPQWZKZ5C}

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	2026-05-18T00:20:32.636916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

93f086a94755197e04dc395f0b6559e88e8e6fbb5394d89fc878e665d27dd2e4

Aliases

arxiv: 1504.04217 · arxiv_version: 1504.04217v1 · doi: 10.48550/arxiv.1504.04217 · pith_short_12: SPYINKKHKUMX · pith_short_16: SPYINKKHKUMX4BG4 · pith_short_8: SPYINKKH

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/SPYINKKHKUMX4BG4HFPQWZKZ5C \
  | 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: 93f086a94755197e04dc395f0b6559e88e8e6fbb5394d89fc878e665d27dd2e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e55399eb349c7530916f6a3cacfa446ff25d8e599bcb31ff2290109601e9e192",
    "cross_cats_sorted": [
      "cs.CR",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-16T13:07:23Z",
    "title_canon_sha256": "b3af2e40e6ff9b660291fd94111c6b1492ab9bedf7a18f46ffd87567bfe6451b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04217",
    "kind": "arxiv",
    "version": 1
  }
}