Pith Number

pith:TE3CXUCK

pith:2026:TE3CXUCKA7ES3OACSDE6PPSYW7

not attested not anchored not stored refs pending

Opus: Photonic Rail-Optimized Fabric in ML Datacenters

Barry Lyu, Bhaskar Kataria, Eric Ding, Rachee Singh

arxiv:2602.12521 v3 · 2026-02-13 · cs.NI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{TE3CXUCKA7ES3OACSDE6PPSYW7}

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	2026-07-07T01:16:05.755086Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

99362bd04a07c92db80290c9e7be58b7efe4d61ad1a9d49db8bb5a05ac6f4fe6

Aliases

arxiv: 2602.12521 · arxiv_version: 2602.12521v3 · doi: 10.48550/arxiv.2602.12521 · pith_short_12: TE3CXUCKA7ES · pith_short_16: TE3CXUCKA7ES3OAC · pith_short_8: TE3CXUCK

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/TE3CXUCKA7ES3OACSDE6PPSYW7 \
  | 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: 99362bd04a07c92db80290c9e7be58b7efe4d61ad1a9d49db8bb5a05ac6f4fe6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a1d1bd5f74c70dc247ba05548e2fa21a337d65567a8beb3b2c2dbc4c520d2af",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NI",
    "submitted_at": "2026-02-13T01:59:03Z",
    "title_canon_sha256": "44244edc4777627252111ffe9d6ebb6cd27bacb2642d3bdcabbad3fbfa141d85"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.12521",
    "kind": "arxiv",
    "version": 3
  }
}