Pith Number

pith:6CBONVGS

pith:2025:6CBONVGSAZ6RCTDBPEOJ6UBSY5

not attested not anchored not stored refs pending

Self-orthogonalizing attractor neural networks emerging from the free energy principle

Karl Friston, Tamas Spisak

arxiv:2505.22749 v2 · 2025-05-28 · q-bio.NC · cs.AI · cs.LG · cs.NE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6CBONVGSAZ6RCTDBPEOJ6UBSY5}

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	2026-05-22T01:03:43.145228Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f082e6d4d2067d114c61791c9f5032c77b1a55c76b88e677629969e5043ea11d

Aliases

arxiv: 2505.22749 · arxiv_version: 2505.22749v2 · doi: 10.48550/arxiv.2505.22749 · pith_short_12: 6CBONVGSAZ6R · pith_short_16: 6CBONVGSAZ6RCTDB · pith_short_8: 6CBONVGS

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/6CBONVGSAZ6RCTDBPEOJ6UBSY5 \
  | 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: f082e6d4d2067d114c61791c9f5032c77b1a55c76b88e677629969e5043ea11d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7cd597a8a7fb058e17844d14741457734baa62ceb52bbd52a4b94c295f36b701",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG",
      "cs.NE"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2025-05-28T18:10:03Z",
    "title_canon_sha256": "9b70e7169f857a7471a173ff32ef63e3acc17a63535affdcac97f0b275560329"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.22749",
    "kind": "arxiv",
    "version": 2
  }
}