Pith Number

pith:2BOZ5TEC

pith:2025:2BOZ5TEC5MPA5OMIZ2QAI3VEGK

not attested not anchored not stored refs pending

An Intermediate Logic Contained in Medvedev's Logic with Disjunction Property

Zhicheng Chen

arxiv:2502.17242 v2 · 2025-02-24 · math.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{2BOZ5TEC5MPA5OMIZ2QAI3VEGK}

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	2026-07-05T10:33:08.613935Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d05d9ecc82eb1e0eb988cea0046ea432b5c723f602cb20cf4f40440a3f9bd50d

Aliases

arxiv: 2502.17242 · arxiv_version: 2502.17242v2 · doi: 10.48550/arxiv.2502.17242 · pith_short_12: 2BOZ5TEC5MPA · pith_short_16: 2BOZ5TEC5MPA5OMI · pith_short_8: 2BOZ5TEC

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/2BOZ5TEC5MPA5OMIZ2QAI3VEGK \
  | 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: d05d9ecc82eb1e0eb988cea0046ea432b5c723f602cb20cf4f40440a3f9bd50d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e6e643b7d0f9f5d5d27dcc2d5a0990f38156d2faabf9faa3ef4fd98348fa193",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "math.LO",
    "submitted_at": "2025-02-24T15:19:10Z",
    "title_canon_sha256": "4a0e89e1ce53699d6817169d3ea72d312ed718dc9c7d2133ccf5506750c4e20e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.17242",
    "kind": "arxiv",
    "version": 2
  }
}