Pith Number

pith:T2SPSDYT

pith:2025:T2SPSDYTWTXAIHPOMJ6OCELCGY

not attested not anchored not stored refs pending

A systolic update scheme to overcome memory bandwidth limitations in GPU-accelerated FDTD simulations

David Qu, Geun Ho Ahn, Jelena Vuckovic, Jesse Lu, Jim Qu, Ryan Fong

arxiv:2502.20610 v1 · 2025-02-28 · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{T2SPSDYTWTXAIHPOMJ6OCELCGY}

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.

Cited by

1 paper in Pith

Native QR Factorization on Programmable Photonic Meshes

Receipt and verification

First computed	2026-07-05T10:21:36.157120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ea4f90f13b4ee041dee627ce111623614c702714011aa5dc2455b3f7cf407de

Aliases

arxiv: 2502.20610 · arxiv_version: 2502.20610v1 · doi: 10.48550/arxiv.2502.20610 · pith_short_12: T2SPSDYTWTXA · pith_short_16: T2SPSDYTWTXAIHPO · pith_short_8: T2SPSDYT

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/T2SPSDYTWTXAIHPOMJ6OCELCGY \
  | 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: 9ea4f90f13b4ee041dee627ce111623614c702714011aa5dc2455b3f7cf407de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4183df8ce81b238e48e93a37b834ae5b6e4903a7ec2e18081a597c8bd93eced5",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2025-02-28T00:25:13Z",
    "title_canon_sha256": "640f9c96f070e186e57b82e4d659b681241c052049670ede29bad73d7fc8af12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.20610",
    "kind": "arxiv",
    "version": 1
  }
}