Pith Number

pith:PQXNTL3G

pith:2018:PQXNTL3GNKT2NSZ7XHB4MDOF6H

not attested not anchored not stored refs pending

Two Classes of Singularities and Novel Topology in a Specially Designed Synthetic Photonic Crystals

Qiucui Li, Xunya Jiang, Yu Zhang

arxiv:1811.02531 v1 · 2018-11-06 · 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{PQXNTL3GNKT2NSZ7XHB4MDOF6H}

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	2026-05-17T23:50:23.142878Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c2ed9af666aa7a6cb3fb9c3c60dc5f1c97a54a09e048652b83cbd48c34693d0

Aliases

arxiv: 1811.02531 · arxiv_version: 1811.02531v1 · doi: 10.48550/arxiv.1811.02531 · pith_short_12: PQXNTL3GNKT2 · pith_short_16: PQXNTL3GNKT2NSZ7 · pith_short_8: PQXNTL3G

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/PQXNTL3GNKT2NSZ7XHB4MDOF6H \
  | 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: 7c2ed9af666aa7a6cb3fb9c3c60dc5f1c97a54a09e048652b83cbd48c34693d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "290c870958f011137c0ecc298b5ca81c2fb48a5a9df9c0b81716d845d98c4336",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2018-11-06T17:56:34Z",
    "title_canon_sha256": "e452884674e8329edcabbfe7e08df8d7a4284622faa637a45c467a52dac42d7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.02531",
    "kind": "arxiv",
    "version": 1
  }
}