Pith Number

pith:HID64RA2

pith:2021:HID64RA2P23YEPUCE2SBF2A75J

not attested not anchored not stored refs pending

Quantum Model Learning Agent: characterisation of quantum systems through machine learning

Anthony Laing, Antonio Andreas Gentile, Brian Flynn, Nathan Wiebe, Raffaele Santagati

arxiv:2112.08409 v1 · 2021-12-15 · quant-ph · 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{HID64RA2P23YEPUCE2SBF2A75J}

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	2026-07-05T04:35:40.976266Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a07ee441a7eb7823e8226a412e81fea683fe62ae065e44e38f89f423d7f7b42

Aliases

arxiv: 2112.08409 · arxiv_version: 2112.08409v1 · doi: 10.48550/arxiv.2112.08409 · pith_short_12: HID64RA2P23Y · pith_short_16: HID64RA2P23YEPUC · pith_short_8: HID64RA2

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/HID64RA2P23YEPUCE2SBF2A75J \
  | 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: 3a07ee441a7eb7823e8226a412e81fea683fe62ae065e44e38f89f423d7f7b42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5270302face4049f7e1b95909b6f38362d2218bd128c3736a80362e0c0b2244",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-12-15T19:01:53Z",
    "title_canon_sha256": "e0ebcf4540dc68d054e8c5417b650b5b6a5a2b6a8bdb929269a05ce9c239e1d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.08409",
    "kind": "arxiv",
    "version": 1
  }
}