Pith Number

pith:MFAPQ5JM

pith:2019:MFAPQ5JMQRKH7RYKWPWIR5DZC4

not attested not anchored not stored refs pending

QCOR: A Language Extension Specification for the Heterogeneous Quantum-Classical Model of Computation

Alexander J. McCaskey, Eugene F. Dumitrescu, Pavel Lougovski, Sarah Powers, Shirley V. Moore, Tiffany M. Mintz

arxiv:1909.02457 v1 · 2019-09-05 · cs.PL · 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{MFAPQ5JMQRKH7RYKWPWIR5DZC4}

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	2026-07-05T00:02:34.871877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6140f8752c84547fc70ab3ec88f479170c971e668fabd968894049ec5e303a5b

Aliases

arxiv: 1909.02457 · arxiv_version: 1909.02457v1 · doi: 10.48550/arxiv.1909.02457 · pith_short_12: MFAPQ5JMQRKH · pith_short_16: MFAPQ5JMQRKH7RYK · pith_short_8: MFAPQ5JM

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/MFAPQ5JMQRKH7RYKWPWIR5DZC4 \
  | 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: 6140f8752c84547fc70ab3ec88f479170c971e668fabd968894049ec5e303a5b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "33004bf59aca46b4e654932bb2306c279da8a80692ff83accf71196aa169870d",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.PL",
    "submitted_at": "2019-09-05T14:43:15Z",
    "title_canon_sha256": "8e6c0ef12fdbca6aaa0d2bb9ad5c2b1df87051c2e3d6e85336a1b0de2969d737"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.02457",
    "kind": "arxiv",
    "version": 1
  }
}