Pith Number

pith:YPQXO47Z

pith:2018:YPQXO47ZNNVMQZ2I2NFRPRX4EG

not attested not anchored not stored refs pending

Lieb polariton topological insulators

Albert Ferrando, Chunyan Li, Dmitry V. Skryabin, Fangwei Ye, Lluis Torner, Xianfeng Chen, Yaroslav V. Kartashov

arxiv:1802.02215 v1 · 2018-02-04 · cond-mat.mes-hall · nlin.PS · 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{YPQXO47ZNNVMQZ2I2NFRPRX4EG}

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	2026-05-18T00:21:06.140958Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3e17773f96b6ac86748d34b17c6fc21b8be83354f07906000fb591aeb1ef6f8

Aliases

arxiv: 1802.02215 · arxiv_version: 1802.02215v1 · doi: 10.48550/arxiv.1802.02215 · pith_short_12: YPQXO47ZNNVM · pith_short_16: YPQXO47ZNNVMQZ2I · pith_short_8: YPQXO47Z

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/YPQXO47ZNNVMQZ2I2NFRPRX4EG \
  | 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: c3e17773f96b6ac86748d34b17c6fc21b8be83354f07906000fb591aeb1ef6f8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eba413190d9ef441cd7f7ab0985323920f77c7a90f8d458023ad690ed8d8b2eb",
    "cross_cats_sorted": [
      "nlin.PS",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2018-02-04T09:16:32Z",
    "title_canon_sha256": "5dd532e6fb5dccdc326582f316af1fd5bd95a9996232144145534c6417c5a11f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.02215",
    "kind": "arxiv",
    "version": 1
  }
}