Pith Number

pith:H75E3BKJ

pith:2015:H75E3BKJFULOJQEW5R3HFEH6KQ

not attested not anchored not stored refs pending

Direct measurement of second-order coupling in a waveguide lattice

Alexander Szameit, Benedikt Pressl, Gregor Weihs, Markus Gr\"afe, Ren\'e Heilmann, Robert Keil

arxiv:1510.07900 v2 · 2015-10-27 · 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{H75E3BKJFULOJQEW5R3HFEH6KQ}

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	2026-05-18T01:24:20.110774Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ffa4d85492d16e4c096ec767290fe543565753f797b75fd420933fc8f0a413d

Aliases

arxiv: 1510.07900 · arxiv_version: 1510.07900v2 · doi: 10.48550/arxiv.1510.07900 · pith_short_12: H75E3BKJFULO · pith_short_16: H75E3BKJFULOJQEW · pith_short_8: H75E3BKJ

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/H75E3BKJFULOJQEW5R3HFEH6KQ \
  | 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: 3ffa4d85492d16e4c096ec767290fe543565753f797b75fd420933fc8f0a413d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0270bf8395d7162c0adcacab2053043e36327bee976ba610880c88149667f1e0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-10-27T13:37:42Z",
    "title_canon_sha256": "40c8812c62ca58b123458ab9d63a0b386009c3dfe3ca81db03b2196075d1c339"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.07900",
    "kind": "arxiv",
    "version": 2
  }
}