Pith Number

pith:W72BAFR2

pith:2015:W72BAFR2HNF4DJ4QZ2W2YOB33D

not attested not anchored not stored refs pending

Parity-time symmetry from stacking purely dielectric and magnetic slabs

Fu Liu, James Gear, Jensen Li, S. T. Chu, Stefan Rotter

arxiv:1503.00902 v1 · 2015-03-03 · 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{W72BAFR2HNF4DJ4QZ2W2YOB33D}

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	2026-05-18T01:35:55.189431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7f410163a3b4bc1a790ceadac383bd8fdda7850dee5a2d4615e5b5227a00e74

Aliases

arxiv: 1503.00902 · arxiv_version: 1503.00902v1 · doi: 10.48550/arxiv.1503.00902 · pith_short_12: W72BAFR2HNF4 · pith_short_16: W72BAFR2HNF4DJ4Q · pith_short_8: W72BAFR2

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/W72BAFR2HNF4DJ4QZ2W2YOB33D \
  | 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: b7f410163a3b4bc1a790ceadac383bd8fdda7850dee5a2d4615e5b5227a00e74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "606d2029f03be7b6ef4550530b4ad8f6ee4e6c8dfe84ced6b47e327ad3b338a1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2015-03-03T11:31:06Z",
    "title_canon_sha256": "8d9140a500791f28576e14236a005c82fc98c5005789d5f1dab64b5aeeabc35f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00902",
    "kind": "arxiv",
    "version": 1
  }
}