Pith Number

pith:7LT4O5V3

pith:2021:7LT4O5V3AIA65TAAKAD45LQ5AB

not attested not anchored not stored refs pending

Associative Memories via Predictive Coding

Lei Sha, Rafal Bogacz, Simon Frieder, Thomas Lukasiewicz, Tommaso Salvatori, Yuhang Song, Yujian Hong, Zhenghua Xu

arxiv:2109.08063 v1 · 2021-09-16 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7LT4O5V3AIA65TAAKAD45LQ5AB}

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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.

Cited by

1 paper in Pith

Closed-form predictive coding via hierarchical Gaussian filters

Receipt and verification

First computed	2026-07-05T03:15:04.806066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fae7c776bb0201eecc005007ceae1d00565c58e686ae098113b0a2710b42209d

Aliases

arxiv: 2109.08063 · arxiv_version: 2109.08063v1 · doi: 10.48550/arxiv.2109.08063 · pith_short_12: 7LT4O5V3AIA6 · pith_short_16: 7LT4O5V3AIA65TAA · pith_short_8: 7LT4O5V3

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/7LT4O5V3AIA65TAAKAD45LQ5AB \
  | 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: fae7c776bb0201eecc005007ceae1d00565c58e686ae098113b0a2710b42209d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79e8979a28f4484e72923c26481a31fbfe551147a6646c45ddedd8e809fa4cdf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-09-16T15:46:26Z",
    "title_canon_sha256": "82623a707164fa42db6caf00f2a4490ebcb5be52e870f4ebebd31d529ae40868"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.08063",
    "kind": "arxiv",
    "version": 1
  }
}