Pith Number

pith:AA5EXOLN

pith:2021:AA5EXOLN3PZ7CB2I2JXG6IUOLS

not attested not anchored not stored refs pending

Topological classifications of quadratic bosonic excitations in closed and open systems with examples

Chih-Chun Chien, Yan He

arxiv:2103.15200 v5 · 2021-03-28 · cond-mat.mes-hall · cond-mat.other · quant-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AA5EXOLN3PZ7CB2I2JXG6IUOLS}

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	2026-07-05T04:01:30.414813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

003a4bb96ddbf3f10748d26e6f228e5cb4fad88296c600de37642534b8aab719

Aliases

arxiv: 2103.15200 · arxiv_version: 2103.15200v5 · doi: 10.48550/arxiv.2103.15200 · pith_short_12: AA5EXOLN3PZ7 · pith_short_16: AA5EXOLN3PZ7CB2I · pith_short_8: AA5EXOLN

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/AA5EXOLN3PZ7CB2I2JXG6IUOLS \
  | 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: 003a4bb96ddbf3f10748d26e6f228e5cb4fad88296c600de37642534b8aab719

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "009b2d6d428c06ffac74743eaacf092679e1e76f307441950b9c6266010b724a",
    "cross_cats_sorted": [
      "cond-mat.other",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2021-03-28T19:01:44Z",
    "title_canon_sha256": "58f7996290258c94d64a61cd417ec6eaddf01cc52f565ec3a2251f705b761e32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.15200",
    "kind": "arxiv",
    "version": 5
  }
}