Pith Number

pith:4T3EMKM3

pith:2021:4T3EMKM3AFHSN5VKALUDETQKVK

not attested not anchored not stored refs pending

Predictive coding feedback results in perceived illusory contours in a recurrent neural network

Bhavin Choksi, Callum Biggs O'May, Rufin VanRullen, Zhaoyang Pang

arxiv:2102.01955 v2 · 2021-02-03 · cs.CV · q-bio.NC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4T3EMKM3AFHSN5VKALUDETQKVK}

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	2026-07-05T02:49:53.050763Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4f646299b014f26f6aa02e8324e0aaa860aeb85f7f495535553c1b3e4bf74fb

Aliases

arxiv: 2102.01955 · arxiv_version: 2102.01955v2 · doi: 10.48550/arxiv.2102.01955 · pith_short_12: 4T3EMKM3AFHS · pith_short_16: 4T3EMKM3AFHSN5VK · pith_short_8: 4T3EMKM3

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/4T3EMKM3AFHSN5VKALUDETQKVK \
  | 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: e4f646299b014f26f6aa02e8324e0aaa860aeb85f7f495535553c1b3e4bf74fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d191459aeed8aa5b7ff0330314aab8ac5bb9b8d16715f4c38ae0ed5ff191dd9",
    "cross_cats_sorted": [
      "q-bio.NC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2021-02-03T09:07:09Z",
    "title_canon_sha256": "3aab4a31ea444eed4469549761df54dbb6d6be16a0ee02c39a2fce5036fcd5c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.01955",
    "kind": "arxiv",
    "version": 2
  }
}