Pith Number

pith:PEYPYKCX

pith:2017:PEYPYKCX355D2CGGFIJOJNUWTM

not attested not anchored not stored refs pending

Inverse design and demonstration of a compact on-chip narrowband three-channel wavelength demultiplexer

Alexander Y. Piggott, Jan Petykiewicz, Jelena Vu\v{c}kovi\'c, Logan Su, Neil V. Sapra

arxiv:1709.08809 v1 · 2017-08-17 · physics.app-ph · physics.optics

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

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	2026-05-18T00:34:21.837051Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7930fc2857df7a3d08c62a12e4b6969b1bdd8bcc81454921b79c35e0970e8696

Aliases

arxiv: 1709.08809 · arxiv_version: 1709.08809v1 · doi: 10.48550/arxiv.1709.08809 · pith_short_12: PEYPYKCX355D · pith_short_16: PEYPYKCX355D2CGG · pith_short_8: PEYPYKCX

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/PEYPYKCX355D2CGGFIJOJNUWTM \
  | 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: 7930fc2857df7a3d08c62a12e4b6969b1bdd8bcc81454921b79c35e0970e8696

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ac0e5fcdb90fa0bd3deea4d541f07cd500cd08014bfcb019f17570778114299a",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2017-08-17T23:07:34Z",
    "title_canon_sha256": "08cf21493f08d28c93959cc1d2ecb957682046536d63fc4827734f23167f0669"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.08809",
    "kind": "arxiv",
    "version": 1
  }
}