Pith Number

pith:TXTUYZN7

pith:2016:TXTUYZN72R66GWUVRHOIFSAY4Y

not attested not anchored not stored refs pending

Finite-Difference Time-Domain (FDTD) Modelling of Space-Time Modulated Metasurfaces

Scott A. Stewart, Shulabh Gupta, Tom J. Smy

arxiv:1612.02087 v2 · 2016-12-07 · 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{TXTUYZN72R66GWUVRHOIFSAY4Y}

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	2026-05-18T00:53:20.454804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9de74c65bfd47de35a9589dc82c818e60fdcbf15b77ab5688a5cd8666bba933d

Aliases

arxiv: 1612.02087 · arxiv_version: 1612.02087v2 · doi: 10.48550/arxiv.1612.02087 · pith_short_12: TXTUYZN72R66 · pith_short_16: TXTUYZN72R66GWUV · pith_short_8: TXTUYZN7

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/TXTUYZN72R66GWUVRHOIFSAY4Y \
  | 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: 9de74c65bfd47de35a9589dc82c818e60fdcbf15b77ab5688a5cd8666bba933d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "85ea32653c405e0867916268b3c9d14c94617fa1257e505f61c0133b81a25dd1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2016-12-07T01:10:46Z",
    "title_canon_sha256": "0c77712aced8b17a1b30acf4a6a86ad46e5eb81789226563cc4762c020f2d7f8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.02087",
    "kind": "arxiv",
    "version": 2
  }
}