Pith Number

pith:N4Q2Z4BE

pith:2021:N4Q2Z4BEJ2UPLFUB3NRZTATDOS

not attested not anchored not stored refs pending

Training Saturation in Layerwise Quantum Approximate Optimisation

D. Rabinovich, E. Campos, J. Biamonte, V. Akshay

arxiv:2106.13814 v1 · 2021-06-25 · quant-ph · cond-mat.dis-nn · 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{N4Q2Z4BEJ2UPLFUB3NRZTATDOS}

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	2026-07-05T03:16:19.623190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6f21acf0244ea8f59681db63998263748e9c527d2322aaf3aab2485d656b6214

Aliases

arxiv: 2106.13814 · arxiv_version: 2106.13814v1 · doi: 10.48550/arxiv.2106.13814 · pith_short_12: N4Q2Z4BEJ2UP · pith_short_16: N4Q2Z4BEJ2UPLFUB · pith_short_8: N4Q2Z4BE

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/N4Q2Z4BEJ2UPLFUB3NRZTATDOS \
  | 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: 6f21acf0244ea8f59681db63998263748e9c527d2322aaf3aab2485d656b6214

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7ed71965c76e1522a64ca09a03643a745eb5660f2bfc8c430622d631cca2c8b",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-06-25T18:00:02Z",
    "title_canon_sha256": "30515c602878cf010f955afa0b554b8eba9c5c5c53598cedcfe9d9463af133f6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13814",
    "kind": "arxiv",
    "version": 1
  }
}