Pith Number

pith:7JU77BOR

pith:2020:7JU77BORE247UEN266MB7UV7OK

not attested not anchored not stored refs pending

Mid-infrared quantum cascade laser frequency combs with a microstrip-like line waveguide geometry

Barbara Schneider, Emilio Gini, Filippos Kapsalidis, J\'er\^ome Faist, Mathieu Bertrand, Matthew Singleton, Mattias Beck

arxiv:2012.10163 v1 · 2020-12-18 · physics.optics · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7JU77BORE247UEN266MB7UV7OK}

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	2026-07-05T02:23:22.758432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa69ff85d126b9fa11baf7981fd2bf72aba3c7fb9ceeee7ebef43e75f955d14d

Aliases

arxiv: 2012.10163 · arxiv_version: 2012.10163v1 · doi: 10.48550/arxiv.2012.10163 · pith_short_12: 7JU77BORE247 · pith_short_16: 7JU77BORE247UEN2 · pith_short_8: 7JU77BOR

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/7JU77BORE247UEN266MB7UV7OK \
  | 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: fa69ff85d126b9fa11baf7981fd2bf72aba3c7fb9ceeee7ebef43e75f955d14d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49ab2adf7ed7cdb3f9e63d5747a0c98eceef9146803d313d49f497967a4b5a89",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-12-18T10:53:29Z",
    "title_canon_sha256": "6531cba8bc732f700d171e1ea97a2e6189fcf7d697fdcbd71bf2a0f36665dd70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.10163",
    "kind": "arxiv",
    "version": 1
  }
}