Pith Number

pith:BCCTIEYQ

pith:2025:BCCTIEYQ2BMR2XBXDIROHMNNDD

not attested not anchored not stored refs pending

Preconditioned Conjugate Gradient for MIMO-AFDM System

Dazhi He, Haoyang Li, Jun Zhu, Wenjun Zhang, Yin Xu, Yunfeng Guan

arxiv:2506.22465 v1 · 2025-06-18 · eess.SP · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BCCTIEYQ2BMR2XBXDIROHMNNDD}

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	2026-07-05T11:28:38.981355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0885341310d0591d5c371a22e3b1ad18dc28ff80b67932358957b3812d9585e3

Aliases

arxiv: 2506.22465 · arxiv_version: 2506.22465v1 · doi: 10.48550/arxiv.2506.22465 · pith_short_12: BCCTIEYQ2BMR · pith_short_16: BCCTIEYQ2BMR2XBX · pith_short_8: BCCTIEYQ

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/BCCTIEYQ2BMR2XBXDIROHMNNDD \
  | 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: 0885341310d0591d5c371a22e3b1ad18dc28ff80b67932358957b3812d9585e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6141c1409689b665dbc28ef9c1e405562453d6ff75ec222383ca5baf905d39ae",
    "cross_cats_sorted": [
      "cs.IT",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2025-06-18T14:14:37Z",
    "title_canon_sha256": "2a3fd8a8305c972d8686a8f1b041f48993ca171306776747c2cef2b080e09d2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.22465",
    "kind": "arxiv",
    "version": 1
  }
}