Pith Number

pith:KP43QKNU

pith:2014:KP43QKNUN4EFY4AVNDJOYJQWAW

not attested not anchored not stored refs pending

$\mathcal{PT}$-symmetric microring laser-absorber

Liang Feng, Stefano Longhi

arxiv:1407.4672 v1 · 2014-07-17 · physics.optics · quant-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{KP43QKNUN4EFY4AVNDJOYJQWAW}

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	2026-05-18T01:42:34.356847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53f9b829b46f085c701568d2ec261605b4bc5e7bd213d34e77d50eb97d32fb97

Aliases

arxiv: 1407.4672 · arxiv_version: 1407.4672v1 · doi: 10.48550/arxiv.1407.4672 · pith_short_12: KP43QKNUN4EF · pith_short_16: KP43QKNUN4EFY4AV · pith_short_8: KP43QKNU

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/KP43QKNUN4EFY4AVNDJOYJQWAW \
  | 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: 53f9b829b46f085c701568d2ec261605b4bc5e7bd213d34e77d50eb97d32fb97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "212e6c0bb99119b64645e759690b51d2b8bf8a05f85a754c75c5ed58eaa3cc65",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-07-17T14:00:48Z",
    "title_canon_sha256": "5a4ed1be38e7d6257866d61402a1f66f2c0aea2f0ac3f160ecbd818864c3062f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4672",
    "kind": "arxiv",
    "version": 1
  }
}