Pith Number

pith:6AFE3DNH

pith:2025:6AFE3DNHVS3H7F4DLHSKLGMOUF

not attested not anchored not stored refs pending

The perfect entangler spectrum as a tool to analyze crosstalk

Christiane P. Koch, Matthias G. Krauss

arxiv:2506.03137 v2 · 2025-06-03 · 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{6AFE3DNHVS3H7F4DLHSKLGMOUF}

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	2026-07-05T11:46:43.826977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f00a4d8da7acb67f978359e4a5998ea16ed556a9dba6a0c3d34cb7d691f90ee5

Aliases

arxiv: 2506.03137 · arxiv_version: 2506.03137v2 · doi: 10.48550/arxiv.2506.03137 · pith_short_12: 6AFE3DNHVS3H · pith_short_16: 6AFE3DNHVS3H7F4D · pith_short_8: 6AFE3DNH

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/6AFE3DNHVS3H7F4DLHSKLGMOUF \
  | 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: f00a4d8da7acb67f978359e4a5998ea16ed556a9dba6a0c3d34cb7d691f90ee5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dafa9875dd64cda0c6dabc0a84312f74e2f95c38bafbd54020f83a6d30f29c3c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-06-03T17:58:50Z",
    "title_canon_sha256": "1e683c99306b1b12e3a851c2738f3f2cfd699cb60cc7174c49430a8aab53c8b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.03137",
    "kind": "arxiv",
    "version": 2
  }
}