Pith Number

pith:EGWTQIKR

pith:2013:EGWTQIKRJZBPOENLI3NA7UU4CD

not attested not anchored not stored refs pending

Reciprocity and the scattering matrix of waveguide modes

Guro K. Svendsen, Johannes Skaar, Magnus W. Haakestad

arxiv:1301.2458 v1 · 2013-01-11 · 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{EGWTQIKRJZBPOENLI3NA7UU4CD}

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	2026-05-18T01:52:13.450541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

21ad3821514e42f711ab46da0fd29c10c57a09c003d83fcadc91a110f2242e49

Aliases

arxiv: 1301.2458 · arxiv_version: 1301.2458v1 · doi: 10.48550/arxiv.1301.2458 · pith_short_12: EGWTQIKRJZBP · pith_short_16: EGWTQIKRJZBPOENL · pith_short_8: EGWTQIKR

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/EGWTQIKRJZBPOENLI3NA7UU4CD \
  | 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: 21ad3821514e42f711ab46da0fd29c10c57a09c003d83fcadc91a110f2242e49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cca38214c46f573206a3eb4400376e903c5348c5a6f7f4c887d58f954a3c69ae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2013-01-11T11:30:53Z",
    "title_canon_sha256": "6177ddc8352aef72d0c0fe3c889abb5b4c07c214f04c96168420d0b44f36fed9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2458",
    "kind": "arxiv",
    "version": 1
  }
}