Pith Number

pith:HFQM2B2D

pith:2020:HFQM2B2D6FS3TYKKM2JTUG3JCU

not attested not anchored not stored refs pending

Reconfigurable electro-optic frequency shifter

Amirhassan Shams-Ansari, Di Zhu, Eric Puma, Jeffrey Holzgrafe, Linbo Shao, Marko Loncar, Mengjie Yu, Mian Zhang, Neil Sinclair, Yaowen Hu

arxiv:2005.09621 v1 · 2020-05-19 · 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{HFQM2B2D6FS3TYKKM2JTUG3JCU}

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	2026-07-05T03:35:06.068866Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3960cd0743f165b9e14a66933a1b69151514cb4c55ef22a6824f7e2be53c90d1

Aliases

arxiv: 2005.09621 · arxiv_version: 2005.09621v1 · doi: 10.48550/arxiv.2005.09621 · pith_short_12: HFQM2B2D6FS3 · pith_short_16: HFQM2B2D6FS3TYKK · pith_short_8: HFQM2B2D

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/HFQM2B2D6FS3TYKKM2JTUG3JCU \
  | 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: 3960cd0743f165b9e14a66933a1b69151514cb4c55ef22a6824f7e2be53c90d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc2a7fa8bd9f66184d45ced880e617dd6f535178ddce5cf436be04886b73649f",
    "cross_cats_sorted": [
      "physics.app-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2020-05-19T17:50:55Z",
    "title_canon_sha256": "63e62b9e1a18508482b22e656206489ba6d63d8324b651667d1a33660ed38a2d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.09621",
    "kind": "arxiv",
    "version": 1
  }
}