Pith Number

pith:EMMGHK63

pith:2019:EMMGHK63DHPLLKFLDOO2H6DTU4

not attested not anchored not stored refs pending

Smart contracts meet quantum cryptography

Andrea Coladangelo

arxiv:1902.05214 v2 · 2019-02-14 · 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{EMMGHK63DHPLLKFLDOO2H6DTU4}

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	2026-05-17T23:41:36.581811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

231863abdb19deb5a8ab1b9da3f873a71cfa1a6dd10a26ea585bf7b5bc6da320

Aliases

arxiv: 1902.05214 · arxiv_version: 1902.05214v2 · doi: 10.48550/arxiv.1902.05214 · pith_short_12: EMMGHK63DHPL · pith_short_16: EMMGHK63DHPLLKFL · pith_short_8: EMMGHK63

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/EMMGHK63DHPLLKFLDOO2H6DTU4 \
  | 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: 231863abdb19deb5a8ab1b9da3f873a71cfa1a6dd10a26ea585bf7b5bc6da320

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44e53a4931fe5c42bf4321630ebf2a694c6becf52472633b9344b2c0ea7d0b6b",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-02-14T04:20:27Z",
    "title_canon_sha256": "7179fa739b71d680b00de535693df9f41eacaa4fba461ebaed64495a5d3750bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05214",
    "kind": "arxiv",
    "version": 2
  }
}