Pith Number

pith:6JP4SJYD

pith:2026:6JP4SJYDSB6F2T457W5Z2G4IGR

not attested not anchored not stored refs pending

A journey through Flatland: What does the antiflatness of a spectrum teach us?

Alioscia Hamma, Barbara Jasser, Daniele Iannotti

arxiv:2605.21664 v1 · 2026-05-20 · 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{6JP4SJYDSB6F2T457W5Z2G4IGR}

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	2026-05-22T01:03:27.263182Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f25fc92703907c5d4f9dfdbb9d1b88344f99f828314c03b4c6ecabcc043e2aba

Aliases

arxiv: 2605.21664 · arxiv_version: 2605.21664v1 · doi: 10.48550/arxiv.2605.21664 · pith_short_12: 6JP4SJYDSB6F · pith_short_16: 6JP4SJYDSB6F2T45 · pith_short_8: 6JP4SJYD

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/6JP4SJYDSB6F2T457W5Z2G4IGR \
  | 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: f25fc92703907c5d4f9dfdbb9d1b88344f99f828314c03b4c6ecabcc043e2aba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb53c231e2ce93b7dd631e64d52eb7082ac4c621a363fe40e4838205549cda42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-05-20T19:15:31Z",
    "title_canon_sha256": "50025b64d5168aec34c2d4ef6871b2da8d8405f94b2784e15a1fddfe4f36e8f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21664",
    "kind": "arxiv",
    "version": 1
  }
}