Pith Number

pith:4GFFC2LK

pith:2019:4GFFC2LKCDWP4CNORHT3YHNECB

not attested not anchored not stored refs pending

Perspective: Toward large-scale fault-tolerant universal photonic quantum computing

Akira Furusawa, Shuntaro Takeda

arxiv:1904.07390 v1 · 2019-04-16 · 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{4GFFC2LKCDWP4CNORHT3YHNECB}

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	2026-05-17T23:43:23.021724Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e18a51696a10ecfe09ae89e7bc1da4105ca36ab16148ddd74d5216b4955055dc

Aliases

arxiv: 1904.07390 · arxiv_version: 1904.07390v1 · doi: 10.48550/arxiv.1904.07390 · pith_short_12: 4GFFC2LKCDWP · pith_short_16: 4GFFC2LKCDWP4CNO · pith_short_8: 4GFFC2LK

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/4GFFC2LKCDWP4CNORHT3YHNECB \
  | 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: e18a51696a10ecfe09ae89e7bc1da4105ca36ab16148ddd74d5216b4955055dc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "962a7815ba4683063e506ce4938c049a498193d16e9032d47b35f30ee104be95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2019-04-16T01:21:09Z",
    "title_canon_sha256": "b247e09f87a6364c888ab878de9a57a862af1bb197ce2e59aa9455c8fb7ee4c2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.07390",
    "kind": "arxiv",
    "version": 1
  }
}