Pith Number

pith:WRFTKBWI

pith:2026:WRFTKBWIDO2NYTX3KMMABZOVKG

not attested not anchored not stored refs pending

Complexity of Normalized Persistence Problems for Topological Data Analysis and Local Hamiltonians

Dominic Lowe, M.S. Kim, Roberto Bondesan, Ryu Hayakawa

arxiv:2607.03278 v1 · 2026-07-03 · quant-ph · cs.CC · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WRFTKBWIDO2NYTX3KMMABZOVKG}

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	2026-07-07T02:17:34.705440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b44b3506c81bb4dc4efb531800e5d5518894058c2bf84a6db74a3f6c15681c56

Aliases

arxiv: 2607.03278 · arxiv_version: 2607.03278v1 · doi: 10.48550/arxiv.2607.03278 · pith_short_12: WRFTKBWIDO2N · pith_short_16: WRFTKBWIDO2NYTX3 · pith_short_8: WRFTKBWI

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/WRFTKBWIDO2NYTX3KMMABZOVKG \
  | 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: b44b3506c81bb4dc4efb531800e5d5518894058c2bf84a6db74a3f6c15681c56

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "161ce6aa11a01ed188836283205add0c6792f96f4616bb53a5e18dbb1d3a1b0e",
    "cross_cats_sorted": [
      "cs.CC",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-07-03T12:46:53Z",
    "title_canon_sha256": "16d57687459308579266bfbd5129ff9c7f37b870ed84f8175a542d7cf5552da7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.03278",
    "kind": "arxiv",
    "version": 1
  }
}