Pith Number

pith:UCEXJ3LH

pith:2020:UCEXJ3LHDYEP5Z2WBZA7EF5XHV

not attested not anchored not stored refs pending

Markov Blankets in the Brain

Anjali Bhat, Ines Hipolito, Karl Friston, Laura Convertino, Maxwell Ramstead, Thomas Parr

arxiv:2006.02741 v1 · 2020-06-04 · q-bio.NC · physics.bio-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UCEXJ3LHDYEP5Z2WBZA7EF5XHV}

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	2026-07-05T01:07:59.710856Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a08974ed671e08fee7560e41f217b73d7fe2bc8433d5b8e83b9e0c6d60af06f3

Aliases

arxiv: 2006.02741 · arxiv_version: 2006.02741v1 · doi: 10.48550/arxiv.2006.02741 · pith_short_12: UCEXJ3LHDYEP · pith_short_16: UCEXJ3LHDYEP5Z2W · pith_short_8: UCEXJ3LH

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/UCEXJ3LHDYEP5Z2WBZA7EF5XHV \
  | 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: a08974ed671e08fee7560e41f217b73d7fe2bc8433d5b8e83b9e0c6d60af06f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fcf6b1db0fe5dee9ca1fbf67aab09cbc8a34b9266e21b1e45bf9b605c8afb295",
    "cross_cats_sorted": [
      "physics.bio-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2020-06-04T10:03:31Z",
    "title_canon_sha256": "b5f1633f83a380db8b2cdb5658c957d026c5735dd35e5889834f754149ac5827"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2006.02741",
    "kind": "arxiv",
    "version": 1
  }
}