Pith Number

pith:W67XQHZ4

pith:2026:W67XQHZ4RW7AXQWPKNMGKP6LRH

not attested not anchored not stored refs pending

Toward Alias-Free Channel Extrapolation in Upper Mid-Band Systems: A Spatial-Frequency-Temporal Tensor Learning Approach

Bj\"orn Ottersten, Hongwei Hou, Jiangzhou Wang, Jiawei Zhuang, Wenjin Wang, Xinping Yi, Yafei Wang

arxiv:2607.24330 v1 · 2026-07-27 · eess.SP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{W67XQHZ4RW7AXQWPKNMGKP6LRH}

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	2026-07-28T02:23:57.660070Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b7bf781f3c8dbe0bc2cf5358653fcb89eb1fa000a7a17eb91a12c1dfc0652601

Aliases

arxiv: 2607.24330 · arxiv_version: 2607.24330v1 · doi: 10.48550/arxiv.2607.24330 · pith_short_12: W67XQHZ4RW7A · pith_short_16: W67XQHZ4RW7AXQWP · pith_short_8: W67XQHZ4

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/W67XQHZ4RW7AXQWPKNMGKP6LRH \
  | 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: b7bf781f3c8dbe0bc2cf5358653fcb89eb1fa000a7a17eb91a12c1dfc0652601

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14651d41409ec2424d6ae0f5d44e35e5b3fc8624ea5b18a19c464c727952c6b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-07-27T12:08:39Z",
    "title_canon_sha256": "5f38c5b2eefe80b9272ed6fe8cff953e7bc27436ae4de313c88b8f182465fd8b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.24330",
    "kind": "arxiv",
    "version": 1
  }
}