Pith Number

pith:IP63W7SR

pith:2016:IP63W7SRHPPFUM7IPLXOGARTFV

not attested not anchored not stored refs pending

A Scalable Framework for CSI Feedback in FDD Massive MIMO via DL Path Aligning

Cong Shen, Die Hu, Penghao Cai, Xiaoyu Zhang, Xiliang Luo

arxiv:1612.09520 v1 · 2016-12-30 · cs.IT · math.IT

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

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	2026-05-18T00:39:00.413024Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43fdbb7e513bde5a33e87aeee302332d5e03a0c3caff8ef66c16cb965c12b22a

Aliases

arxiv: 1612.09520 · arxiv_version: 1612.09520v1 · doi: 10.48550/arxiv.1612.09520 · pith_short_12: IP63W7SRHPPF · pith_short_16: IP63W7SRHPPFUM7I · pith_short_8: IP63W7SR

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/IP63W7SRHPPFUM7IPLXOGARTFV \
  | 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: 43fdbb7e513bde5a33e87aeee302332d5e03a0c3caff8ef66c16cb965c12b22a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6cae2705bd2a5efe1ae551d4923e2fe821502bf433bf9aad7b7de68a8484e7e9",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2016-12-30T16:18:07Z",
    "title_canon_sha256": "ffd8d3a09d79a2aadb6ee87ee2bc99fe56d68d5caec1ce08c078907be083265a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.09520",
    "kind": "arxiv",
    "version": 1
  }
}