Pith Number

pith:AM2UO4KW

pith:2018:AM2UO4KWNYXAWYG7RYQ3DXUYFK

not attested not anchored not stored refs pending

Quantum codes from classical graphical models

Dominic Horsman, Joschka Roffe, Nicholas Chancellor, Stefan Zohren

arxiv:1804.07653 v2 · 2018-04-20 · 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{AM2UO4KWNYXAWYG7RYQ3DXUYFK}

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	2026-07-05T00:39:08.568437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

03354771566e2e0b60df8e21b1de982aa2a0e8d41c94e2ee2cb7403c2bfbbadf

Aliases

arxiv: 1804.07653 · arxiv_version: 1804.07653v2 · doi: 10.48550/arxiv.1804.07653 · pith_short_12: AM2UO4KWNYXA · pith_short_16: AM2UO4KWNYXAWYG7 · pith_short_8: AM2UO4KW

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/AM2UO4KWNYXAWYG7RYQ3DXUYFK \
  | 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: 03354771566e2e0b60df8e21b1de982aa2a0e8d41c94e2ee2cb7403c2bfbbadf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "313ec603e9d67c7bc02a25dbf53e2862206156f2281bca2eef4b22edcaa92e5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-04-20T14:53:33Z",
    "title_canon_sha256": "a96ff9ace2b17fd43447ef3237a4aaed8cddbfcb4cc8f1d5421643c313d98535"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07653",
    "kind": "arxiv",
    "version": 2
  }
}