Pith Number

pith:7H6ITHVF

pith:2019:7H6ITHVFX4TGVS6M3MZB7325ZI

not attested not anchored not stored refs pending

New topological invariants in non-Hermitian systems

Ananya Ghatak, Tanmoy Das

arxiv:1902.07972 v4 · 2019-02-21 · cond-mat.mes-hall · cond-mat.quant-gas · math-ph · math.MP · physics.optics · 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{7H6ITHVFX4TGVS6M3MZB7325ZI}

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.

Cited by

1 paper in Pith

Non-Hermitian Gravitational Wave Scattering

Receipt and verification

First computed	2026-05-17T23:40:23.629916Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f9fc899ea5bf266acbccdb321fef5dca28681e7771680b112bc51a14c40f894b

Aliases

arxiv: 1902.07972 · arxiv_version: 1902.07972v4 · doi: 10.48550/arxiv.1902.07972 · pith_short_12: 7H6ITHVFX4TG · pith_short_16: 7H6ITHVFX4TGVS6M · pith_short_8: 7H6ITHVF

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/7H6ITHVFX4TGVS6M3MZB7325ZI \
  | 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: f9fc899ea5bf266acbccdb321fef5dca28681e7771680b112bc51a14c40f894b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "995b4d674cb43d6ed4b7e83d5b5f3b6e7de38e8f5dde00be6c11f1f75a311ad3",
    "cross_cats_sorted": [
      "cond-mat.quant-gas",
      "math-ph",
      "math.MP",
      "physics.optics",
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.mes-hall",
    "submitted_at": "2019-02-21T11:28:29Z",
    "title_canon_sha256": "1b575df01ad08f975e308c9a6945c92fe74f5852f48336339d21b6a8f8734652"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07972",
    "kind": "arxiv",
    "version": 4
  }
}