Pith Number

pith:MQGPUPXA

pith:2026:MQGPUPXABYEVVAOYKICO5UFGFG

not attested not anchored not stored refs pending

Self-testing Quantum Supermaps

Alastair A. Abbott, Cyril Branciard, Jean-Daniel Bancal, Pavel Sekatski, Victor Barizien

arxiv:2606.25124 v1 · 2026-06-23 · 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{MQGPUPXABYEVVAOYKICO5UFGFG}

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	2026-06-25T00:18:18.696331Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

640cfa3ee00e095a81d85204eed0a629948a215eb3f19d27fa28b4ac805af7de

Aliases

arxiv: 2606.25124 · arxiv_version: 2606.25124v1 · doi: 10.48550/arxiv.2606.25124 · pith_short_12: MQGPUPXABYEV · pith_short_16: MQGPUPXABYEVVAOY · pith_short_8: MQGPUPXA

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/MQGPUPXABYEVVAOYKICO5UFGFG \
  | 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: 640cfa3ee00e095a81d85204eed0a629948a215eb3f19d27fa28b4ac805af7de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa17e53671ce7a77b2a3aaa9fa7a32b180d5b518c9222b318f9a5a6b142537d1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-23T19:54:13Z",
    "title_canon_sha256": "31a5e3383fbc384dd4ac3fe34a8244b62b35c0e45a4eb38e508cb460c13910de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.25124",
    "kind": "arxiv",
    "version": 1
  }
}