Pith Number

pith:U7DEMYTE

pith:1999:U7DEMYTE725C7XVCQLU7JLK3IV

not attested not anchored not stored refs pending

Unconditionally Secure Quantum Coin Tossing

Dominic Mayers, Louis Salvail, Yoshie Chiba-Kohno

arxiv:quant-ph/9904078 v2 · 1999-04-22 · 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{U7DEMYTE725C7XVCQLU7JLK3IV}

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	2026-05-18T00:22:30.199554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7c6466264feba2fdea282e9f4ad5b4541b8d1b9d7a110860b0e98daf4f546e6

Aliases

arxiv: quant-ph/9904078 · arxiv_version: quant-ph/9904078v2 · doi: 10.48550/arxiv.quant-ph/9904078 · pith_short_12: U7DEMYTE725C · pith_short_16: U7DEMYTE725C7XVC · pith_short_8: U7DEMYTE

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/U7DEMYTE725C7XVCQLU7JLK3IV \
  | 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: a7c6466264feba2fdea282e9f4ad5b4541b8d1b9d7a110860b0e98daf4f546e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "deed59ffc1e9b78c692e78b56dc6e9143eb3b51fca41e4d412570f564b709103",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "quant-ph",
    "submitted_at": "1999-04-22T22:43:38Z",
    "title_canon_sha256": "0b98817f09f8491d78288340bf0fc08937cb95f669ca65881ab4759c0a299b87"
  },
  "schema_version": "1.0",
  "source": {
    "id": "quant-ph/9904078",
    "kind": "arxiv",
    "version": 2
  }
}