Pith Number

pith:6B4QA3MQ

pith:2018:6B4QA3MQ2N2Z4HWRNSS42PO76Y

not attested not anchored not stored refs pending

PhD thesis: Homological Quantum Codes Beyond the Toric Code

Nikolas P. Breuckmann

arxiv:1802.01520 v1 · 2018-02-05 · 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{6B4QA3MQ2N2Z4HWRNSS42PO76Y}

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	2026-05-18T00:24:25.677740Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f079006d90d3759e1ed16ca5cd3ddff60fc6e6c20f16a1c0470ca6c3e21996c7

Aliases

arxiv: 1802.01520 · arxiv_version: 1802.01520v1 · doi: 10.48550/arxiv.1802.01520 · pith_short_12: 6B4QA3MQ2N2Z · pith_short_16: 6B4QA3MQ2N2Z4HWR · pith_short_8: 6B4QA3MQ

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/6B4QA3MQ2N2Z4HWRNSS42PO76Y \
  | 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: f079006d90d3759e1ed16ca5cd3ddff60fc6e6c20f16a1c0470ca6c3e21996c7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca7593227d61068359e7609c6812dc7a109d21101d353a35110033707d2dd7f2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-02-05T17:27:38Z",
    "title_canon_sha256": "e86df8681618e9550d497a4c7a6f8b501dd89fdaf439dd2fad3043180726dad8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.01520",
    "kind": "arxiv",
    "version": 1
  }
}