Pith Number

pith:FCFIGNUR

pith:2018:FCFIGNUR5H3WZHX4FDXV6G2HSB

not attested not anchored not stored refs pending

Topological Edge States in Bichromatic Photonic Crystals

F. Alpeggiani, L. Kuipers

arxiv:1808.07405 v1 · 2018-08-22 · 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{FCFIGNUR5H3WZHX4FDXV6G2HSB}

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	2026-05-18T00:07:28.978135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

288a833691e9f76c9efc28ef5f1b47904261b463279b6da0b81463886b32eac1

Aliases

arxiv: 1808.07405 · arxiv_version: 1808.07405v1 · doi: 10.48550/arxiv.1808.07405 · pith_short_12: FCFIGNUR5H3W · pith_short_16: FCFIGNUR5H3WZHX4 · pith_short_8: FCFIGNUR

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/FCFIGNUR5H3WZHX4FDXV6G2HSB \
  | 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: 288a833691e9f76c9efc28ef5f1b47904261b463279b6da0b81463886b32eac1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a00a3b3099bf5017d94695eee1a50f28c241d94ba4a6c32d4f2c248a4551b2d9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-08-22T15:35:24Z",
    "title_canon_sha256": "d62627bdf470f33bea2c1778025be43727aba1827fdbd9d66511cadf5c1768e5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.07405",
    "kind": "arxiv",
    "version": 1
  }
}