Pith Number

pith:6Z4T4AWP

pith:2021:6Z4T4AWP7FBV47RZT4UTPT2PXE

not attested not anchored not stored refs pending

Focusing on the Hybrid Quantum Computing -- Tabu Search Algorithm: new results on the Asymmetric Salesman Problem

Aitor Moreno-Fernandez-de-Leceta, Eneko Osaba, Esther Villar-Rodriguez, Izaskun Oregi

arxiv:2102.05919 v2 · 2021-02-11 · quant-ph · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6Z4T4AWP7FBV47RZT4UTPT2PXE}

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	2026-07-05T02:36:48.533382Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6793e02cff9435e7e399f2937cf4fb91de65c066ddf5abe4c81855a390d5ac3

Aliases

arxiv: 2102.05919 · arxiv_version: 2102.05919v2 · doi: 10.48550/arxiv.2102.05919 · pith_short_12: 6Z4T4AWP7FBV · pith_short_16: 6Z4T4AWP7FBV47RZ · pith_short_8: 6Z4T4AWP

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/6Z4T4AWP7FBV47RZT4UTPT2PXE \
  | 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: f6793e02cff9435e7e399f2937cf4fb91de65c066ddf5abe4c81855a390d5ac3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "977314e0dd95b77e02ddde2b94587fa6fa662ab17884486f893bf3815a555c6b",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-02-11T10:08:44Z",
    "title_canon_sha256": "1b577c4fdce223444257bbdd602661ad9cd50837eb79dcc2f41c7c171925c326"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.05919",
    "kind": "arxiv",
    "version": 2
  }
}