Pith Number

pith:X4XLLO3P

pith:2019:X4XLLO3PT7XHERKEDXW3YGCRPR

not attested not anchored not stored refs pending

How to Agree without Understanding Each Other: Public Announcement Logic with Boolean Definitions

Malvin Gattinger (Bernoulli Institute, Peking University), University of Groningen), Yanjing Wang (Department of Philosophy

arxiv:1907.09105 v1 · 2019-07-22 · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{X4XLLO3PT7XHERKEDXW3YGCRPR}

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	2026-05-17T23:40:00.134287Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf2eb5bb6f9fee7245441dedbc18517c510d7bd104433dde899ed42bc3c858d7

Aliases

arxiv: 1907.09105 · arxiv_version: 1907.09105v1 · doi: 10.48550/arxiv.1907.09105 · pith_short_12: X4XLLO3PT7XH · pith_short_16: X4XLLO3PT7XHERKE · pith_short_8: X4XLLO3P

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/X4XLLO3PT7XHERKEDXW3YGCRPR \
  | 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: bf2eb5bb6f9fee7245441dedbc18517c510d7bd104433dde899ed42bc3c858d7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fdaf315bb8170d063789f4743b308d657bdb32e7c145065aec762b08ef5b853",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-07-22T03:16:20Z",
    "title_canon_sha256": "0cc9a41658c0979e01053f8e037da48de7d560e3f56d017500f7f10a692d1661"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09105",
    "kind": "arxiv",
    "version": 1
  }
}