Pith Number

pith:CZ7PIMSB

pith:2026:CZ7PIMSBYZJDWEG2PHG4SF2XZW

not attested not anchored not stored refs pending

An Abstract Worlds Semantic Framework for Belief Change Operators

Daniel Grimaldi, M. Vanina Martinez, Ricardo O. Rodriguez

arxiv:2606.02163 v1 · 2026-06-01 · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CZ7PIMSBYZJDWEG2PHG4SF2XZW}

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	2026-06-02T03:04:51.961012Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

167ef43241c6523b10da79cdc91757cdb4e4bff58d0b96aac15003be21ef2b17

Aliases

arxiv: 2606.02163 · arxiv_version: 2606.02163v1 · doi: 10.48550/arxiv.2606.02163 · pith_short_12: CZ7PIMSBYZJD · pith_short_16: CZ7PIMSBYZJDWEG2 · pith_short_8: CZ7PIMSB

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/CZ7PIMSBYZJDWEG2PHG4SF2XZW \
  | 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: 167ef43241c6523b10da79cdc91757cdb4e4bff58d0b96aac15003be21ef2b17

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e92b3f3982ac087f0060b39974e5abf817855f39467a5ad15b81f5eb5309dd1",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-01T12:24:43Z",
    "title_canon_sha256": "ae54b31437f3f9ebbe1812c4c3a4935b981264516522a3f44401468b2f7319e7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.02163",
    "kind": "arxiv",
    "version": 1
  }
}