Pith Number

pith:2OAJWL6N

pith:2012:2OAJWL6NHTA5KBCOWR7BHQNNWF

not attested not anchored not stored refs pending

Robust optimal quantum learning without quantum memory

E. Bagan, G. Sent\'is, J. Calsamiglia, R. Munoz-Tapia

arxiv:1208.0663 v2 · 2012-08-03 · 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{2OAJWL6NHTA5KBCOWR7BHQNNWF}

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	2026-05-18T03:43:52.052732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3809b2fcd3cc1d5044eb47e13c1adb1482403b6f0962007a8600bba0c1d028b

Aliases

arxiv: 1208.0663 · arxiv_version: 1208.0663v2 · doi: 10.48550/arxiv.1208.0663 · pith_short_12: 2OAJWL6NHTA5 · pith_short_16: 2OAJWL6NHTA5KBCO · pith_short_8: 2OAJWL6N

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/2OAJWL6NHTA5KBCOWR7BHQNNWF \
  | 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: d3809b2fcd3cc1d5044eb47e13c1adb1482403b6f0962007a8600bba0c1d028b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "70bae30ae772c41c15ce0bd2abd8a77cc498775ac2c8c42b81ca97652c4c931b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2012-08-03T06:28:57Z",
    "title_canon_sha256": "5e1b615c592eb3f7d001f4c5f70e42946ab6ba49745bb8e7dcd1fc4491d2b44a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.0663",
    "kind": "arxiv",
    "version": 2
  }
}