Pith Number

pith:B3UGHLVN

pith:2013:B3UGHLVNTHMZZZODTFBJPVXRLQ

not attested not anchored not stored refs pending

General scheme for the construction of a protected qubit subspace

A. Retzker, M. Drewsen, N. Aharon

arxiv:1307.2933 v2 · 2013-07-10 · 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{B3UGHLVNTHMZZZODTFBJPVXRLQ}

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	2026-05-18T02:53:15.138793Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0ee863aead99d99ce5c3994297d6f15c2a6ff94e81ec984ab27924da96470a05

Aliases

arxiv: 1307.2933 · arxiv_version: 1307.2933v2 · doi: 10.48550/arxiv.1307.2933 · pith_short_12: B3UGHLVNTHMZ · pith_short_16: B3UGHLVNTHMZZZOD · pith_short_8: B3UGHLVN

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/B3UGHLVNTHMZZZODTFBJPVXRLQ \
  | 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: 0ee863aead99d99ce5c3994297d6f15c2a6ff94e81ec984ab27924da96470a05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0ea70b8488bd3f6189d635398086a55fc81419e4ee8ca7f29fb6f6cda6d57b3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-07-10T22:11:44Z",
    "title_canon_sha256": "e585af62e0e720b0fd4de807af89c5aedf8d312294950d54153a54e3a2a444df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2933",
    "kind": "arxiv",
    "version": 2
  }
}