Pith Number

pith:7EIHP3GP

pith:2025:7EIHP3GPJ6NWGME457KNUZ2GZF

not attested not anchored not stored refs pending

A new approximate Eastin-Knill theorem

Rhea Alexander

arxiv:2505.00427 v2 · 2025-05-01 · 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{7EIHP3GPJ6NWGME457KNUZ2GZF}

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	2026-07-05T11:11:44.394769Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f91077eccf4f9b63309cefd4da6746c96636c741cd85a527790c232ab0850e6f

Aliases

arxiv: 2505.00427 · arxiv_version: 2505.00427v2 · doi: 10.48550/arxiv.2505.00427 · pith_short_12: 7EIHP3GPJ6NW · pith_short_16: 7EIHP3GPJ6NWGME4 · pith_short_8: 7EIHP3GP

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/7EIHP3GPJ6NWGME457KNUZ2GZF \
  | 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: f91077eccf4f9b63309cefd4da6746c96636c741cd85a527790c232ab0850e6f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "244f9f340babb6f9a84cd4ad6939049386d7e4ecd7f32d7eab170c142f7b4a60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-05-01T09:56:26Z",
    "title_canon_sha256": "aa7625dbe853ea0bc3601d93e6f8c1a02ae6a17d35bcee2df23aaf8db5d35abb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.00427",
    "kind": "arxiv",
    "version": 2
  }
}