Pith Number

pith:XWDWICAC

pith:2015:XWDWICACXTYQ3TWWOKFRWKKAFZ

not attested not anchored not stored refs pending

A highly scalable fully non-blocking silicon photonic switch fabric

Ari Novack, David M. Calhoun, Dessislava Nikolova, Keren Bergman, Michael Hochberg, Sebastien Rumley, Tom Baehr-Jones, Yang Liu

arxiv:1512.09323 v1 · 2015-12-31 · 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{XWDWICACXTYQ3TWWOKFRWKKAFZ}

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	2026-05-18T01:23:32.673411Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd87640802bcf10dced6728b1b29402e7ec66d1ffe623520b2ceb469b2bff049

Aliases

arxiv: 1512.09323 · arxiv_version: 1512.09323v1 · doi: 10.48550/arxiv.1512.09323 · pith_short_12: XWDWICACXTYQ · pith_short_16: XWDWICACXTYQ3TWW · pith_short_8: XWDWICAC

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/XWDWICACXTYQ3TWWOKFRWKKAFZ \
  | 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: bd87640802bcf10dced6728b1b29402e7ec66d1ffe623520b2ceb469b2bff049

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3333c23a8a90c2aaaa64a3840fe848c2c3a751b67808296c1642c34ce941e80",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-12-31T16:51:18Z",
    "title_canon_sha256": "58757bae9aaaa2ca7ee7a955227551de042d97d3c020fe4c39ea972f283f71b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1512.09323",
    "kind": "arxiv",
    "version": 1
  }
}