Pith Number

pith:FYLD7WLM

pith:2004:FYLD7WLMU2BGJ5TJQ3OYUPAKEP

not attested not anchored not stored refs pending

Two-dimensional heterogeneous photonic bandedge laser

Se-Heon Kim, Soon-Hong Kwon, Sung-Bock Kim, Sun-Kyung Kim, Yong-Hee Lee

arxiv:physics/0404061 v1 · 2004-04-13 · 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{FYLD7WLMU2BGJ5TJQ3OYUPAKEP}

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	2026-07-04T16:49:50.279719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e163fd96ca68264f66986dd8a3c0a23c0d91537d649541cbbd14bd1c38d0ba5

Aliases

arxiv: physics/0404061 · arxiv_version: physics/0404061v1 · doi: 10.48550/arxiv.physics/0404061 · pith_short_12: FYLD7WLMU2BG · pith_short_16: FYLD7WLMU2BGJ5TJ · pith_short_8: FYLD7WLM

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/FYLD7WLMU2BGJ5TJQ3OYUPAKEP \
  | 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: 2e163fd96ca68264f66986dd8a3c0a23c0d91537d649541cbbd14bd1c38d0ba5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "01e7f65b0d7704c82770adc8da6e95b2c58829a752013052ef4e9b579340541e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2004-04-13T03:18:04Z",
    "title_canon_sha256": "00ff5d805b09a3060f1233dbfe40e9e73b4bffd999b0f58969018b3a3d8afe73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0404061",
    "kind": "arxiv",
    "version": 1
  }
}