Pith Number

pith:STTJHL3F

pith:2022:STTJHL3FTCJNZM6T4GPL26MEKV

not attested not anchored not stored refs pending

Sparse superposition codes under VAMP decoding with generic rotational invariant coding matrices

Jean Barbier, Teng Fu, TianQi Hou, Yuhao Liu

arxiv:2202.04541 v2 · 2022-02-09 · cs.IT · cond-mat.dis-nn · 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{STTJHL3FTCJNZM6T4GPL26MEKV}

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	2026-07-05T04:26:36.093209Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94e693af659892dcb3d3e19ebd79845568ed88e73043bd7d7eed83d6182646bc

Aliases

arxiv: 2202.04541 · arxiv_version: 2202.04541v2 · doi: 10.48550/arxiv.2202.04541 · pith_short_12: STTJHL3FTCJN · pith_short_16: STTJHL3FTCJNZM6T · pith_short_8: STTJHL3F

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/STTJHL3FTCJNZM6T4GPL26MEKV \
  | 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: 94e693af659892dcb3d3e19ebd79845568ed88e73043bd7d7eed83d6182646bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16df69e9aa44b300ea3abffcaea1ab188b755281571d7f7953d3efceb18180a2",
    "cross_cats_sorted": [
      "cond-mat.dis-nn",
      "math.IT"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2022-02-09T16:08:11Z",
    "title_canon_sha256": "90eee0d206b024c562e9028be659cceee19752000cb9d140fcf8ce71a77cfe32"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.04541",
    "kind": "arxiv",
    "version": 2
  }
}