Pith Number

pith:BUIKY52Q

pith:2017:BUIKY52QVSP4262RTPZ3YCFCFR

not attested not anchored not stored refs pending

The free energy principle for action and perception: A mathematical review

Anil K. Seth, Chang Sub Kim, Christopher L. Buckley, Simon McGregor

arxiv:1705.09156 v1 · 2017-05-24 · 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{BUIKY52QVSP4262RTPZ3YCFCFR}

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	2026-05-18T00:43:40.280247Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d10ac7750ac9fcd7b519bf3bc08a22c76be3d10e598976779637f454dd39577

Aliases

arxiv: 1705.09156 · arxiv_version: 1705.09156v1 · doi: 10.48550/arxiv.1705.09156 · pith_short_12: BUIKY52QVSP4 · pith_short_16: BUIKY52QVSP4262R · pith_short_8: BUIKY52Q

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/BUIKY52QVSP4262RTPZ3YCFCFR \
  | 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: 0d10ac7750ac9fcd7b519bf3bc08a22c76be3d10e598976779637f454dd39577

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4615c48b1c3fab1f822c0441cc2d8e3f83db48b8b4a232686efbfbf34911143b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "q-bio.NC",
    "submitted_at": "2017-05-24T11:40:27Z",
    "title_canon_sha256": "e1f1f0eef00152acefb7af21401bdf3af80a3bef9254d9764afcaaffb8d3dfb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.09156",
    "kind": "arxiv",
    "version": 1
  }
}