Pith Number

pith:SFNPF3UW

pith:2020:SFNPF3UWW4FQEPWUOKGFOVCTC3

not attested not anchored not stored refs pending

Epistemic Logic of Know-Who

Pavel Naumov, Sophia Epstein

arxiv:2012.06651 v2 · 2020-12-11 · cs.AI · 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{SFNPF3UWW4FQEPWUOKGFOVCTC3}

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	2026-07-05T02:19:57.257141Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

915af2ee96b70b023ed4728c57545316eee74dbb8aaa54d90de0f2fcde380351

Aliases

arxiv: 2012.06651 · arxiv_version: 2012.06651v2 · doi: 10.48550/arxiv.2012.06651 · pith_short_12: SFNPF3UWW4FQ · pith_short_16: SFNPF3UWW4FQEPWU · pith_short_8: SFNPF3UW

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/SFNPF3UWW4FQEPWUOKGFOVCTC3 \
  | 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: 915af2ee96b70b023ed4728c57545316eee74dbb8aaa54d90de0f2fcde380351

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e35880af2cfab230aa75ae38c5c6c7e114d504c49e2de4eb6fa262b54a90064",
    "cross_cats_sorted": [
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2020-12-11T21:45:04Z",
    "title_canon_sha256": "59204d8c6dce0dfd07e6a57ca9d5e3681297dfe3446e44c13de4fa72805a6616"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.06651",
    "kind": "arxiv",
    "version": 2
  }
}