Pith Number

pith:F53TTTCK

pith:2025:F53TTTCKLB3CLIAU4OXJFGPZU7

not attested not anchored not stored refs pending

Fracterm Calculus for Partial Meadows

Alban Ponse, Jan A. Bergstra

arxiv:2502.13812 v2 · 2025-02-19 · 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{F53TTTCKLB3CLIAU4OXJFGPZU7}

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	2026-05-18T02:45:14.346723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f7739cc4a587625a014e3ae9299f9a7e3ceedaff40a72eb2dab39ed12f4409d

Aliases

arxiv: 2502.13812 · arxiv_version: 2502.13812v2 · doi: 10.48550/arxiv.2502.13812 · pith_short_12: F53TTTCKLB3C · pith_short_16: F53TTTCKLB3CLIAU · pith_short_8: F53TTTCK

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/F53TTTCKLB3CLIAU4OXJFGPZU7 \
  | 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: 2f7739cc4a587625a014e3ae9299f9a7e3ceedaff40a72eb2dab39ed12f4409d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c04de72f64480b35bfc108919c8b834ed07d60b6af00a9e6a8eb3a16400b07fe",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2025-02-19T15:26:31Z",
    "title_canon_sha256": "37bede1ebaa4dab16371112e18df1f27c557ce5da95384633986eb5247e76aa9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.13812",
    "kind": "arxiv",
    "version": 2
  }
}